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K 1003.16

WAR DEPARTMENT TECHNICAL MANUAL

Caliber .22 Rifles, All Types

WAR DEPARTMENT * 16 MARCH 1944

WAR DEPARTMENT TECHNICAL MANUAL

TM 9-280

Caliber .22 Rifles, All Types

WAR DEPARTMENT 16 MARCH 1944

WAR DEPARTMENTWashington 25, D. C., 16 March 1944

TM 9-280, Caliber .22 Rifles, All Types, is published for theinformation and guidance of all concerned.

A.G. 300.7 (3 Feb 44)1o.o. 300.7/1112

BY ORDER OF THE SECRETARY OF WAR:

G. C. MARSHALL,Chief of Staff.

OFFICIAL:

J. A. ULIO,

Major General,The Adjutant General.

DISTRIBUTION: As. prescribed in paragraph 9.a., FM 21-6; R and H(3); Bn 2, 4, 5, 7, 9-11, 17, 19 and 44 (1); C 2, 4, 5,7, 9-11, 17, 19 and 44 (1).

(For explanation of symbols, see FM 21-6.)

*TM 9-280

CONTENTS

Paragraphs Pages

CHAPTER 1. INTRODUCTICN ........... 1- 5 4- 14

CHAPTER 2. DESCRIPTION AND FUNCTION-ING .................. 6- 34 15- 83

SECTION I. General ................. 6 15- 17

II. U.S. rifles, cal. .22, M1 andM2 .................. 7- 13 18- 41

III. Remington rifle, cal. .22,model 513T .......... 14- 20 41- 54

IV. Stevens rifle, cal. .22, model416-2 ................ 21- 27 54- 69

V. Winchester rifle, cal. .22,model 75 ............. 28- 34 69- 83

CHAPTER 3. OPERATION .............. 35- 39 84- 90

CHAPTER 4. MALFUNCTIONS AND CORREC-TIONS ................ 40- 41 91- 92

CHAPTER 5. CARE AND PRESERVATION ... 42- 48 93- 98

CHAPTER 6. DISASSEMBLY AND ASSEMBLY 49- 53 99-121

CHAPTER 7. INSPECTION ............. 54- 61 122-125

CHAPTER 8. AMMUNITION FOR RIFLE,

CAL..22, ALL TYPES...... 62- 75 126-130

CHAPTER 9. ORGANIZATIONAL SPAREPARTS AND ACCESSORIES.. 76- 77 131-133

CHAPTER 10. STORAGE AND SHIPMENT.... 78- 80 134-135

CHAPTER 11. OPERATION UNDER UNUSUALCONDITIONS ........... 81- 82 136-137

CHAPTER 12. REFERENCES ............. 83- 85 138-139

INDEX .......... ................................ 140-143

*This Technical Manual supersedes TM 9-280, dated 1 October 1940.

3

TM 9-2801

CALIBER .22 RIFLES, ALL TYPES

CHAPTER 1

INTRODUCTION

1. SCOPE.a. This manual is published for the information of the using arms

and services. It contains a description of the cal. .22 target rifles, aswell as technical information required for the identification, use, andcare of the materiel. The rifles covered include the following:Rifle, U.S., Cal. .22, M1922Rifle, U.S., Cal. .22, M1 (figs. 1 and 2)Rifle, U.S., Cal. .22, M2 (figs. 3 and 4)Rifle, Cal. .22, Remington, Model 513T (figs. 5 and 6)Rifle, Cal. .22, Stevens, Model 416-2 (figs. 7 and 8)Rifle, CaL .22, Winchester, Model 75 (figs. 9 and 10)

b. Disassembly, assembly, and such repairs as may be handled byusing arm personnel may be undertaken only under the supervisionof an officer or the chief mechanic.

c. In all cases where the nature. of the repair, modification, oradjustment is beyond the scope or facilities of the unit, the responsibleordnance service should be informed so that trained personnel withsuitable tools and equipment may be provided or proper instructionsissued.

d. This manual differs from TM 9-280, U.S. Rifle, CaL .22, M1922,M1922MI, and M2, dated 1 October 1940 as follows:

(1) In addition to the above rifles, it incorporates information re-quired for the identification, use, and care of Remington Rifle, CaL .22,Model 513T; Stevens Rifle, Cal. .22, Model 416-2, and WinchesterRifle, CaL .22, Model 75.

(2) Chapters on malfunctions, inspection, limited storage, andoperation under unusual conditions have been added.

(3) New illustrations have been included to clarify the text.(4) All material has been revised to bring it up to present

standards.NOTE: The method of designation of parts of the rifles covered

in this manual differ. Parts for the U.S. rifles are carried in SNL B-17under regular ordnance part numbers and standard nomenclature.Parts for the Stevens and Winchestef rifles are carried in SNL B-25without either ordnance or manufacturer's part number, being desig-rpted only by standard nomenclature. Parts for the Remingtonrifle are carried in SNL B-25 under manufacturer's part number andstandard nomenclature. In revised Standard Nomenclature Lists,the Remington manufacturer's part number will be preceded by theabbreviation "REM." In the future, parts of all rifles will be given

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INTRODUCTION

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ordnance stock numbers for storage purposes, in addition to anyordnance or manufacturer's part numbers and/or standard nomen-clature by which they may be designated.

2. CHARACTERISTICS.a. General. The purpose was to provide an accurate small-bore

weapon for training purposes. Six types of these rifles have beenproduced to date; three U.S. rifles, and three commercial rifles, aslisted in paragraph 1 a.

b. Loading. These rifles are magazine fed weapons of the bolttype. The magazine will hold five cartridges and one additionalcartridge may be inserted into the chamber, making the maximumcapacity, for any one loading, six shots. A cartridge is extracted,ejected, and a new one inserted by drawing the bolt back and closingit again.

c. Rear Sights. The rear sights are adjustable for windage andelevation.

3. DIFFERENCES AMONG MODELS.a. General. The caliber .22 pattern of U.S. rifle described in this

manual was initially developed by the Ordnance Department toprovide an accurate small-bore weapon for use of civilian rifle clubs,for use in rifle competitions in schools and colleges, and for salespurpose to members of the National Rifle Association. Subsequently,the weapon was adopted for use in small-bore rifle marksmanshipcourses throughout the Army, Navy, Marine Corps, and Coast Guard.The rifles assembled for use Iof rifle clubs have the NRA type ofstocks and butt plates (shotgun type), while those assembled formilitary use have the military type of stocks and butt plates.

b. U.S. Rifle, Cal. .22, M1922. As initially produced, this riflewas designated as RIFLE, U.S., caliber .22, M1922. Successive im-provements have been indicated by the designations M1922MI(later changed to M1) and M2. In general, these changes in des-ignation were caused by major improvements in the bolt and firingmechanism, and may be applied to any model. The original designof this rifle contained the M1922 Bolt Assembly which included adouble-point striker and headed cocking piece, the M1922 MagazineAssembly which projected below the floor plate, and a No. 48BLyman receiver sight. This sight has five graduations to one completerevolution of the elevating and windage screw knobs. Most of theserifles were assembled with the NRA type of stock (stock, M1922,assembly) and shotgun type of butt plate (plate, butt, M1922).Nearly all these rifles now have later type bolts and magazines, andthe sights have been changed to the No. 48C Lyman receiver sight ingeneral use on subsequent models. Therefore, the M1922 Rifle willnot be covered further in this manual.

10

TM 9-2803

INTRODUCTION

c. U.S. Rifle, Cal. .22, MI. This rifle, formerly designated asthe M1922MI, was the result of the first improvement to the M1922Rifle, and included the bolt with the M1 Firing Mechanism Assembly,the M1 Magazine Assembly, and the No. 48C Lyman receiver sight.The improved bolt permitted more accurate head space adjustmentwhich is critical in such small-bore weapons. The new magazine wasmade to set flush with the floor plate, and the new sight provided 10graduations to 1 complete revolution of the elevating and windagescrews. All these improvements may and probably have been appliedto all M1922 Rifles except those sold to individuals.

NOTE: U.S. Rifle, Cal..22, M1922MI (NRA) is identical with theregular M1922MI Rifle in so far as markings are concerned, but isassembled to the M1922 Stock Assembly D1823 which takes theM1922 Butt Plate. As already stated, the original designation ofM1929MI was changed to Ml. However, there are doubtless manyrifles in the field with the old M1922MI marking. References to theM1 Rifle in this manual should be considered as also applying torifles marked M1922MI.

d. U.S. Rifle, Cal. .22, M2.(1) This rifle is the result of the second improvement of the

original M1922 rifle. The improvements were made in two stages:(a) The first stage included a redesigned bolt with firing mecha-

nism assembly, magazine assembly, and stock assembly which weredesignated as M2. Approximately 3,800 rifles were so assembled.

(b) The second stage was a redesign of the bolt handle to in-corporate an adjustable head space feature, composed of an headspace adjusting screw and set screw. In addition, the fall of thefiring pin was reduced to one-half that of the previous model, and thebolt head and magazine were modified to permit the uppermostcartridge to be in line with the chamber, thus reducing feed jams.

NOTE: Bolt handles of the first-stage design will be replaced withlatest design bolt handles containing the adjustable head space featureas the rifles containing them are turned in for overhaul.

(2) A later modification of the bolt handle with adjustable headspace feature slightly modified the bolt handle and head space adjust-ing screw, and substituted a copper locking plug for the set screw.Both adjusting screw and locking plug were sealed in place afteradjustment

(3) A still later modification of the bolt handle group changed thehead space adjusting screw from one with a slotted head to one withan "Allen" set screw type of head, and eliminated the sealing of thescrew and locking plug after adjustment.

(4) The M2 Bolt (with firing mechanism, assembly) and M2Magazine Assembly may be used together in the M1922 and M1Rifles. When so used, regardless of type of stock, the rifles will bemarked as follows:

11

TM 9-2803


RA PD 81841

Figure 1 - Blade Type Front Sight of Stevens Rifle,Cal. .22, Model 416-2

RA PD 81842

Figure 12 - Hood Type Front Sight of Stevens Rifle,Gal. .22, Model 416-2

RIFLE, U.S. cal. .22, M1922M2 (adding "M2" to original marking)RIFLE, U.S. cal..22, MII (adding "I" to original marking)In addition to above marking, there will also be added to serialnumbers of the converted M1922 and M1 Rifles the letters "A" and"B" respectively.

NOTE: Rifles originally stamped as M1922MI will have markingM1922MII, and the letter "B" after the serial number when soconverted.

(5) As the No. 48B and C Lyman receiver sights are practicallyidentical except as stated above, parts of the C-sight will be requisi-tioned when replacement parts for repair are needed for either theB- or C-sight.

e. Commercial Rifles. The commercial rifles, Remington Model513T, Stevens Model 416-2, and Winchester Model 75 are basicallythe same as the M1 and M2 Rifles. All are of bolt action type, have

12

TM 9-2803-4

INTRODUCTIONa magazine feed, and are equipped with rear sights adjustable forelevation and windage. Front sights are of the blade type except theStevens which may be issued with either a blade type front sight(fig. 11) or a hooded type with five inserts (fig. 12). The differencesin these rifles are tabulated below:

Remington Stevens WinchesterCharacteristics Ml M2 513T 416-2 75

'Trigger pull ... Double Double Single Single Singlepull pull

Adjustable pull. None None Yes None YesEjector ....... In bolt In bolt Fixed Fixed FixedExtractor ..... Single Single Double Double DoubleRear sight .... Lyman Lyman Redfield Stevens Lyman

48C 48C 75-RT 57EFront sight .... Blade Blade Blade Hood or Blade

BladeFront swivel ... Fixed Fixed Adjustable Adjustable AdjustableBarrel band ... Yes Yes None None* Yes

*Late models have band.

4. DATA. Remington Stevens WinchesterMl M2 513T 416-2 75

Weight (lb)............. 8.75 8.90 8.20 8.70 7.90Length (over-all) (in.) ... 43.7 43.7 45.0 45.8 45.0Length of barrel (in.) ..... 24.00 24.00 27.00 26.12 28.12Length of rifling (in.) .... 23.35 23.35 26.25 25.35 27.32Rifling-number of grooves 4 4 6 6 6Rifling-RH twist: 1 turn

in (in.) ............ 16 16 16 16 16Rifling-depth of grooves-

(in.) ................. 0.0025 0.0025 0.0025 0.0025 0.0025Remington Stevens Winchester

M1 M2 513T 416-2 75

Cross sectionalarea of bore(sq in.) .... 0.0385 0.0385 0.0383 0.0383 0.0383

Loading device. Magazine Magazine Magazine Magazine MagazineType of mech-

anism ...... Bolt Bolt Bolt Bolt BoltSight radius

(in.) ....... 28.4 28.4 33.4 32.8 32.8Trigger pull

(lb) ....... 3.5 to 5 3.5 to 5 4 to 6 4 to 6 4 to 6Normal pressure

(lb per sq in.) 20,000 20,000 20,000 20,000 20,000Ammuntion

types ....... 22 long 22 long 22 long 22 long 22 longrifle rifle rifle rifle rifle

Approximatemaximumrange for car-tridge (yd).. 1,500 1,500 1,500 1,500 1,500

Muzzle velocity(ft per sec). . 1,100 1,100 1,100 1,100 1,100

Height of frontsight fromcenter of bore(in.) ....... 1.067 1.067 0.832 0.828 1.195

(blade type)0.878

13 (hood type)13

TM 9-2805


5. CAUTIONS.a. Do not snap the trigger of the U.S. Rifle Ml unnecessarily with-

out a cartridge in the chamber, as this may result in injury to thefiring pin. For practice purposes, a fired cartri'dge case should beplaced in the chamber. The trigger of the other rifles may be snappedwhen the chamber is empty without causing damage.

b. Before firing rifle for record, push a dry patch through the bore,then fire two or three so-called fouling shots to warm the barrel, asan oily barrel will generally give a wild shot.

c. To insure a reasonably accurate life for the rifle, the utmostcare to prevent corrosion or rusting of the bore should be taken. Afterfiring the rifle, the barrel should be cleaned as soon as possible. Inno case should the rifle be allowed to stand overnight without cleaning.

d. Never rest the rifle on the rear sight.e. In case of misfire, the bolt should not be opened for about

15 seconds as it may be a hangfire.f. Only authorized ammunition will be used. Cartridges other

than the type for which the rifle is designed may so affect accuracyas to render the rifle unfit for use.

g. When a cartridge jams during loading, no effort should bemade to force the cartridge into the rifle chamber. The bolt shouldbe retracted and the feedway cleared by removing the jammed car-tridge. Cases are on record of serious injury to personnel due toattempts to force the cartridge into the chamber, using undue forceto close the bolt, or by striking the bolt handle (par. 65 a).

h. When inserting a cartridge into the chamber by hand, it isessential from a safety standpoint that the cartridge be fully cham-bered by hand before closing the bolt. Merely starting the cartridgein the chamber and then attempting to complete the-operation withthe bolt has resulted in serious injury to personnel.

i. If it is desired to carry the rifle cocked with a cartridge in thechamber, the firing mechanism should be secured by turning thesafety to the "safe" position.

j. To obtain positive ejection, the bolt must be drawn fully to therear with a quick motion so that the cartridge case will strike theejector smartly.

k. It is essential for proper working and preservation of all camsthat they be kept lubricated.

1. Never fire the rifle with rust-preventive compound or any ob-struction, whether near the breech or the muzzle, in the bore.

m. When a stoppage occurs with this rifle, the feedway will becleared by removal of the jammed cartridge, and under no circum-stances will the firer attempt to force cartridge into rifle chamber bystriking bolt handle or by rsing undue force to close bolt.

14

TM 9-2806

CHAPTER 2

DESCRIPTION AND FUNCTIONING

Section I

GENERAL

6. GENERAL.a. For convenience, the parts of the rifles have been listed together

in groups and assemblies. A group consists of a number of parts, orparts and assemblies, which function together and are so closely re-lated to each other that they should be considered together. An as-sembly consists of two or more parts and/or assemblies which areeither permanently or semipermanently assembled together and socarried in the Standard Nomenclature List 2 and so stored. An as-sembly frequently is issued as a unit for replacement purposes.

b. Any of the caliber .22 rifles covered in this manual may be dis-assembled into five groups of parts and/or assemblies: bolt (and fir-ing. mechanism) group; magazine group; rear sight group; barrel andreceiver group; and stock group. For convenience and clarity, thedescription and functioning of each rifle is covered according to thesefive groups. Where a complete group is carried as an assembly, it isreferred to as an assembly.

c. Nomenclature of like parts, assemblies or groups, composing therifles covered in this manual, vary somewhat. For example, the boltgroups are designated either as groups or assemblies according to howthey are carried in the Standard Nomenclature List pertaining to therifles. The bolt group of the U.S. rifles is termed "bolt with firingmechanism assembly," that of the Winchester Model 75 rifle as"breech bolt assembly," that of the Stevens Model 416-2 rifle as "boltassembly," that of the Remington Model 513T rifle is not designatedas an assembly in the Standard Nomenclature List and is thereforecalled a "group" in this manual. However the completely assembledbolt of this latter rifle may be issued as a complete assembly. Forconvenience, such complete bolt assemblies or groups are sometimesreferred to in this manual as the "bolt," as in chapters on "Operation,"and "Disassembly and Assembly." Likewise the magazine assemblyis referred to as the "magazine."

NOTE: At present, there are no organizational spare parts for thecommercial rifles issued to the using arms. Such rifles must be sentto an arsenal for other than minor repair.

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TM 9-2806


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Section II

U.S. RIFLES, CAL. .22, Ml AND M2

7. GENERAL.a. The ma*ual operation and mechanical functioning of the M1

and M2 Rifles (fig. 13) are identical and, with the exception of thebolt mechanism and magazine, both rifles are the same. Because ofthis fact, and because the M1 Bolt is no longer being manufactured,the M2 only is described with the points in which the M1 differsbeing explained where necessary.

8. BOLT WITH FIRING MECHANISM ASSEMBLY.a. The bolt with firing mechanism assembly can be removed from

the rifle as a unit (fig. 14). It includes the bolt head assembly, thebolt handle group, and the firing mechanism assembly (fig. 15). Forconvenience, the firing mechanism assembly is described as twogroups: the bolt sleeve group, and the firing pin group.

NOTE: The bolt with firing mechanism assembly of the M1(fig. 16) includes the bolt head assembly, the bolt handle assembly,and the firing mechanism assembly (fig. 17). However, these assem-blies differ from like assemblies of the M2 as explained in the notespertaining thereto.

b. The Bolt Head Assembly.(1) The bolt head assembly consists of the bolt head, extractor,

ejector., ejector retaining pin, and ejector spring.(2) The front end of the bolt head has the firing pin hole through

which the firing pin passes to strike the cartridge (fig. 18). The frontend is also chambered to receive the cartridge rim. Extending backon the bottom of the bolt head are two magazine clearance grooves

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Figure 14 - Bolt With Firing Mechanism Assembly ofU.S. Rifle, Cal. .22, M2

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TM 9-2808


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RA PD 31900

Figure 16 - Bolt With Firing Mechanism Assembly ofU.S. Rifle, Cal. .22, MI

which permit the bolt to clear the sides of the magazine tube. Betweenthe grooves is a lug which serves to push the cartridge forward untilit is out of the magazine and received by the chambered front of thebolt head. The bolt head is also slotted on the right side to providea seat for the extractor.

(3) At the front end of the extractor, there is a hook by which thecartridge case is extracted from the chamber (fig. 19). The tonguejust back of the hook rides in a groove in the extractor slot, and theundercut lug seats in an undercut hole in the extractor slot to holdthe extractor. in the bolt head.

(4) The back portion of the bolt head is bored out to receive thebolt handle and a smaller bore at the top continues to the front of thehead t'o receive the firing pin. On the top back of the bolt head is alatch lug which engages the locking lug located on the bolt handle(fig. 20).

(5) The ejector is mounted by means of the ejector retaining pinon the left front side between two lugs which serve also as a guidefor the bolt in the receiver. The ejector spring returns the ejector toposition after the cartridge case has been ejected.

(6) The ejector is operated by the ejector stop group which in-cludes a thumbpiece which is part of the body (fig. 21). The ejectorstop is mounted in the left side of the receiver by a spindle and lockedin place by a set screw passing through the thumbpiece of the ejectorstop. On the back of the ejector stop is a plunger which rides in agroove in the receiver under pressure of the ejector stop spring toretain the ejector stop in either of its two positions. The inside of theejector stop has a dismounting groove which matches the inside of thereceiver, thus opening the passage way for the retraction of the boltwhen the stop is turned to its horizontal position.

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TM 9-2808


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TM 9-2808

CALIBER .22 RIFLES, ALL TYPESMAGAZINE

CLEARANCEGROOVES

LUG

EXTRACTOR SLOT

CHAMBERING FIRING PIN HOLE RA PD 81923

Figure 18 - Bolt Head Assembly, Extractor Removed,of U.S. Rifle, Cal. .22, M2

HOOK TONGUE LUG

/RA PD 81964

Figure 19 - Extractor of U.S. Rifle, Cal. .22, M2

NOTE: The bolt head assembly on the M1 is essentially the sameas on the M2, but the ejector is not as long (fig. 22). The M1 Lock-ing Lug is split into two twin lugs to receive the bolt head latch. Theextractor is the same except for the dimensions and the contour ofthe hook, and should never be interchanged with the M2 Extractor.

c. Bolt Handle Group.(1) The bolt handle group consists of the bolt handle, the head

space adjusting screw, and the head space adjusting screw lockingplug (fig. 23).

(2) The forward portion of the bolt handle sleeve is reduced indiameter to fit into the bolt head. A locking lug is formed on theouter surface of the sleeve of the bolt handle and extends slightlyover the reduced portion. The lug sustains the shock of discharge by

22

TM 9-2808


LUG, BOLT GHEAD LOCKING

PIN, RETAINING,

EJECTOR-A13121

EJECTORc3998

LUGS, GUIDE

RA PD 81915

Figure 20- Bolt Head Assembly of U.S. Rifle, Cal..22, M2,Extractor Removed - Top Front View

EJECTOR STOPTHUMBPIECE

STOP-B8558 \5' -

SPIND'E,EJECTOR STOP

A13356 -

DISMOUNTINGGROOVE

RA PD 81954Figure 21 -- Receiver Section Showing Ejector Stop on U.S. Rifle,

Cal. .22, M2 - Locked and Unlocked Positions

23

TM 9-2808

CALIBER .22 RIFLES, ALL TYPESLUGS, BOLT

HEADLOCKING

PIN, RETAINING,EJECTOR-A 3121

FIRING PINHOLE

EJECTORB8556

LUGS, GUIDE

C3846 vL...... MMAGAUNE CLEARANCE GROOVERA PD 81962

Figure 22 - Bolt Head Assembly of U.S. Rifle, Cal. .22, MI

HANDLE, BOLT_D28233

D28233SCREW, ADJUSTING,HEADSPACE -A13708

LOCKING LUG

PLUG, LOCKING,HEADSPACE

ADJUSTING SCREWA152729

OCK COCKINGNOTCH CAM RA PD 22729

Figure 23 - Bolt Handle Group of U.S. Rifle, Cal. .22,M2 - Side View

24

TM 9-2808

DESCRIPTION AND FUNCTIONINGSAFETY LOCK BOLT SLEEVE

SPINDLE RECESS, ,- LOCK NOTCH

BOLT SLEEVE CLEARANCE

COCKNOTCH

COCKINGCAM

RA PD 81948Figure 24 - Bolt Handle Group of U.S. Rifle, Cal. .22,

M2 - Back View

engagement with the locking shoulders on the inside of the receiver.The lug is grooved on the under side permitting it to pass over the lugon the rear of the bolt head when the handle is lifted, thus locking thebolt head and handle. This is accomplished because the firing pinhole in the bolt head is off center so that the firing pin and bolt sleevewill not turn in the bolt head. Since the bolt handle is locked to thebolt sleeve when it is raised, it is also locked to the bolt head.

(3) A head space adjusting screw is located lengthwise in the lug.It is locked by a head space adjusting screw locking plug. No adjust-ment should be made except by qualified ordnance personnel. (Onearly types of M2 Rifles, the head space adjusting-screw was adjustedwith a screwdriver and was locked by a set screw in the side of thelug. The hole for the adjusting screw was then plugged to preventaccidental loosening and tampering by unauthorized personnel.)

(4) The back of the bolt handle (fig. 24) is recessed to provideclearance for the bolt sleeve and to act as a stop for the handle. Theback end is also machined out to provide a recess for the front of thesafety lock spindle when the safety lock is turned. Just above thesafety lock spindle recess is the bolt sleeve lock notch in which thebolt sleeve lock seats to lock the sleeve to the handle.

(5) The bottom of the bolt handle is recessed to form the cocking

25

TM 9-2808


PIN, BOLT HEADLATCH -Al3118

PLUNGER, BOLTHEAD LATCH

_ B8560K / LOCKING LUG

HANDLE,BOLT--D28233

OCKING CAM

COCK NOTCH RA PD 81959

Figure 25 - Bolt Handle Assembly of U.S. Rifle, Cal. .22,MI - Side View

'cam in which the nose of the cocking piece is seated when the rifle isnot cocked. The cam action forces the firing pin to the rear to cockthe rifle when the handle is lifted. A cock notch is located just atthe upper end of the cocking cam to receive the cocking piece nosewhen the rifle is cocked.

(6) The front of the handle proper is cut away to provide theextractor cam which engages the cam on the inner surface of thereceiver to force the bolt assembly to the rear when the handle israised.

(7) The interior of the bolt handle is threaded to receive the boltsleeve.

NOTE: The M1 Bolt Handle Assembly is essentially the same asthe M2 (fig. 25), except that the head space adjusting feature is miss-ing and that the locking lug is replaced by a split locking lug in thecenter of which is located a bolt head latch, bolt head latch plunger,bolt head latch spring and bolt head latch pin. The latch, latchplunger, and latch spring are mounted in the split in the lug by meansof the latch pin. The latch plunger projects above the top of thelocking lug; when the bolt handle is raised, the plunger is depressedby contact with the receiver, thus depressing the plunger which pushesthe back end of the latch down to raise the front end to allow it topass over the first of the twin lugs on the bolt head and then seat

26

TM 9-2808


PIECE, THUMB,SAFETY LOCK-

(GROOVE FOR 8128409COCKING PLUNGER,

PIECE), SPINDLE, SAFETY LOCK

SAFETY LOCK A130012A130028

SIDEVIEW

END VIEW LOCK, BOLT,SLEEVE-A135893

EN VELOKBOT59(BEVEL FORPIN, BOLT SLEEVE DISMOUNTING_-LOCK-A135897 THUMBPIECE)

BOTTOM VIEW RA PD 22726

Figure 26 - Bolt Sleeve Group of U.S. Rifle, Cal. .22, M2

between them and lock the head and handle together as the latchspring returns both parts to position.

d. Bolt Sleeve Group.(1) The bolt sleeve group consists of the bolt sleeve assembly and

the safety lock assembly (fig. 26).(2) The bolt sleeve assembly includes the bolt sleeve, the bolt

sleeve lock, the bolt sleeve lock pin, and the bolt sleeve lock spring.(3) The barrel of the bolt sleeve is threaded to secure the sleeve

to the bolt handle. The front of the sleeve is cut away to permitseating over the bolt handle. A cocking piece slot at the bottom ofthe bolt sleeve provides an opening for the cocking piece.

(4) The bolt sleeve lock with its spring is mounted in a recess inthe left side of the bolt sleeve. It locks the bolt sleeve to the bolthandle by entering its notch in the bolt handle. It is designed to pre-vent accidental turning of the sleeve when the bolt is drawn back.

(5) The safety lock spindle is seated in a hole drilled in the topof the bolt sleeve. There is a groove in the top of the bolt sleeve inwhich the plunger of the safety lock moves. Three detents are pro-vided in the groove for the three positions of the safety lock. Extend-ing back from the groove is a bevel for dismounting the safety lockfrom the bolt sleeve.

(6) The safety lock is a permanent assembly. It consists of asafety lock with thumbpiece for turning the safety lock, safety lock

27

TM 9-2808


spindle, the safety lock plunger, and the safety lock spring (fig. 26).(7) The safety lock is mounted to the bolt sleeve by means of the

safety lock spindle which extends through a hole in the top of thelock and the sleeve. When the safety lock is in the safe position, thebolt handle is prevented from rotating by contact with the front ofthe safety lock spindle. The bolt handle clearance on the front ofthe safety lock spindle permits the bolt handle to clear the spindlein the ready and neutral positions.

(8) The safety lock plunger, assembled in the thumbpiece, pro-jects into its groove in the bolt sleeve under pressure of the plungerspring and prevents any movement of the lock to the rear.

(9) Two cams on the bottom of the thumbpiece form a lockinggroove between them. When the safety lock is moved from "ready"position to either "neutral" or "safe," the cams pass on each side ofthe locking shoulder of the cocking piece, thus permitting the .lockinggroove of the safety lock to seat over the locking shoulder of thecocking piece and preventing it from moving when the trigger ispulled. A cocking piece groove on the thumbpiece permits the cock-ing piece to move when the safety lock is in the "ready" position.

e. Firing Pin Group.(1) The firing pin group consists of the cocking piece, locking

spring, firing pin, firing pin nut, and main spring (fig. 27).(2) The front of the firing pin is a striker. Back of the striker

is a shoulder against which the main spring seats. The rear end ofthe firing pin rod is reduced in diameter to take the cocking piece andis threaded to receive the firing pin nut and locking spring. The in-side of the nut is serrated to lock against the locking spring locatedin a notch in the back end of the cocking piece. This prevents thefiring pin nut from being jarred loose by the vibration of discharge.

(3) The cocking piece has two grooves cut in its top to form alocking shoulder between them over which the cocking piece grooveof the safety lock slides (subpar. d (6), above). The nose of thecocking piece rests against the lower edge of the cocking cam of thebolt handle when the gun is uncocked. When the gun is being cocked,the cocking cam of the cocking piece moves upward in the cockingcam of the bolt handle until it seats in the cock notch of the bolthandle which prevents it from accidentally returning to the uncockedposition. At the bottom of the cocking piece is a sear notch whichengages the sear nose when the gun is being cocked, thus keeping the'cocking piece and the firing pin stationary while the bolt moves for-ward when the handle is returned to the closed position.

NOTE: The firing mechanism assembly of the M1 Rifle is dif-ferent from the M2. The striker assembly consists of the firing pinhead and the striker (fig. 28). These are permanently assembledduring manufacture. The firing pin head is slotted to provide a clear-

28

TM 9-2808


c z

0-

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Uth -L_ e---~- 0 'U

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29

TM 9-2808


o, A

I

Ci

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TM 9-2808-9


RA PD 81887

Figure 29 - Magazine Assembly of U.S. Rifle, Cal. .22,M2 -- Cutaway View

ance for the ejector. The striker assembly is secured to the firingpin rod by means of a joint hole. The firing pin sleeve fits over therear end of the firing pin head and the front end of the firing pin rodcovering the joint hole and preventing accidental separation of thefiring pin head and firing pin rod. Its rear end forms the front bear-ing for the mainspring while the back end of the mainspring seatsagainst the bolt sleeve. The firing pin assembly consists of the firingpin rod and the cocking piece. The rod is screwed to the cockingpiece and riveted over in assembly. The front of the firing pin rodconsists of a neck and head which fit over the joint hole of the striker,being held in place by the action of the mainspring against the firingpin sleeve which slides over th.e end of the striker. The cocking piecehas two locking grooves cut in its top to form a locking shoulder overwhich the cocking piece groove of the safety lock slides.

9. MAGAZINE ASSEMBLY,a. The magazines of the M2 and the M1 Rifles appear the same

but are not interchangeable and must be used with their correspond-ing bolts. Complete units of both bolt and magazine must be usedtogether. The magazine is i nserted through the floor plate and isretained in place by the magazine retaining spring which seats in thebottom of the receiver against the magazine (par. 11 b).

31

TM 9-2809-10

CALIBER .22 RIFLES, ALL TYPESDISC, REAR SIGHT

APERTURE KNOB, REAR SIGHTWINDAGE SCREW

KNOB, REAR SIGHT \ SCALE, WINDAGE,ELEVATING SCREW) REAR SIGHT

J SCREW, WINDAGE,,/,?~- "~ ~J~ sl~UU'-~iYZ, REAR SIGHT

KNOB, REAR SIGHTLOCK BOLT

SCREW, REAR SIGHTSLIDE, MOUNTING, LONG

REAR SIGHT RA PD 22733

Figure 30 - Rear Sight Assembly Mounted on U.S. Rifle,Cal. .22, M2 - Right Top View

h. The magazine assembly includes the magazine tube, the maga-zine base, magazine spring, and magazine follower (fig. 29).

c. The magazine tube is a permanent assembly and no attemptshould ever be made to take it apart.

d. A serrated thumbpiece on the follower extends through a slotin the side of the magazine tube and is used to compress the maga-zine spring when loading the magazine.

e. The magazine base fits in two slots in the bottom of the tube.f. The magazine spring maintains a pressure on the magazine fol-

lower, forcing the cartridge to the top of the magazine where lips onthe tube retain it until it is moved forward to a point where a slot ineach lip permits the cartridge rim to enter and the cartridge to leavethe magazine.

10. REAR SIGJIT GROUP.a. A Lyman No. 48C sight (assembly) is mounted on the receiver

bridge (fig. 30) by means of two mounting screws, one long and oneshort. The short screw is located under the elevating slide.

b. The rear sight base is slotted to take the elevating slide, anddrilled longitudinally at the top for the rear sight lock bolt (fig. 31).The bolt and base are grooved in the center to take the rear sight

32

TM 9-28010


BOLT,REAR SIGHT KNOB, REAR SIGHT

LOCK LOCK BOLT

ASE, REAR SIGHT

Figure 31 - Rear Sight Base Mounted on U.S. Rifle, Cal..22, M2

elevating screw. The bolt is slotted at the left end to hold the flatrear sight lock bolt spring which is attached at the bottom of the basewith a screw. The left side of the grooved portion of the bolt isthreaded to correspond with the threads of the elevating screw. Thesethreads are held in tension against the elevating screw by the springpermitting the elevating screw to be turned up or down in the threads.The rear sight lock bolt knob screws on the right side of the rear sightlock bolt and is held by the rear sight lock bolt knob set screw. Thispermits the rear sight lock bolt knob to be unscrewed part way whenpressure against the knob releases the rear sight elevating screw fromthe threads of the lock bolt allowing the slide to be moved up. Therear sight .pointer is screwed on the back side of the elevating base.

c. The elevating slide is graduated and indexed, and provided withmicrometer adjustment by means of the knurled knob located at itstop. The rear sight pointer is screwed to the base to the left of theelevating slide. The screw hole is elongated to provide for adjustment.

d. The elevating slide is an inverted L-shape. Its top extensionis slotted in the center for the rear sight windage screw at the end ofwhich is the knurled' rear sight windage knob. The rear sight aper-ture is assembled on the rear sight windage screw and is threaded toremove when the rear sight windage screw knob is turned. The rearsight aperture disk is screwed into the back of the aperture (fig. 32).The rear sight windage scale is screwed to the top piece of the

33

TM 9-28010-11

CALIBER .22 RIFLES, ALL TYPESDISK, REAR

SIGHT APERTURE

APERTURE, KNOB, REAR SIGHTREAR SIGHT 3 ELEVATING SCREW

SCREW, ELEVATING,REAR SIGHT

KNOB,REAR SIGHT

~~~~~~~~WINDAGE BOLT, REARSCREW SCREWINDAG i aSIGHT LOCK

SCREW WINDAGE,REAR SIGHT , SPRING, REAR SIGHT

LOCK BOLT

BASE, REAR SIGHT

RA PD 22719

Figure 32 - Rear Sight Assembly of U.S. Rifle, Cal. .22,M2 - Left Rear View

elevating slide directly in front of the aperture. The screw holesof the windage scale are elongated to provide for adjustment.

11. BARREL AND RECEIVER GROUP.

a. The barrel and receiver assembly, composed of the barrelassembly and receiver, of the M2 and ML Rifles are identical withthe exception of the identification markings on the upper front sur-face. of the receiver. The barrel and receiver assembly are a perma-nent assembly and are not to be separated. The barrel and receivergroup is composed of the barrel and receiver assembly, the front sightgroup, the trigger mechanism group, and the magazine retaining spring(fig. 33).

b. Barrel Assembly.(1) The barrel assembly consists of the barrel, fixed stud, and the

fixed stud pin. The barrel is 24 inches long and the rifling consistsof four plain grooves 0.0025 inch deep. The twist is uniform righthand, one turn in 16 inches. The muzzle is rounded to protect therifling, and the tenon at the rear is threaded for the purpose ofsecuring the receiver to the barrel. The breech of the barrel is re-cessed to receive the ends of the ejector and extractor. On the top inthe rear of the fixed stud are stamped the ordnance escutcheon, theinitials of the place of manufacture, and the month year of manu-

34

TM 9-28011


STOP, EJECTOR - 88558 RECEIVERN \ SIGHT, FRONT. A130025

BARREL - D1816

SPRING, RETAINING. MAGAZINE - D28315

TRIGGER - C64032 RA PD 81958

Figure 33 - Barrel and Receiver Group of U.S. Rifle, Cal. .22, M2

SIGHT, FRONT - A130025

SPIN, FRONT_iJS IGHT - Al 30005

a STUD,MOVABLE-I 8128427

BARREL - D1816

STUD, FIXED

RA PD 22715Figure 34 - Front Sight Group of U.S. Rifle, Cal. .22, M2

facture. On the upper left hand side, directly in front of the tenonthreads is stamped "Long rifle Cart'ge only."

(2) The fixed stud, to which is assembled the front sight group, isprevented frm moving laterally by a slot which bears on a lug onthe upper side of the barrel. The fixed stud pin enters a hole inthe fixed stud and a slight recess on the top of the barrel, preventinglongitudinal displacement of the stud.

35

TM 9-28011


STOP, EJECTORSEAR B8558

B128416 *

RA PD 22714

Figure 35 - Receiver Section of U.S. Rifle, Cal. .22,M2 - Bolt Removed - Top View

c. Front Sight Group. The moveable stud of the front sightgroup (fig. 34) fits into the undercut slot in the fixed stud. The frontsight fits in a slot in the moveable stud and is held in place with atapered pin both ends of which are upset to prevent accidental re-moval. The rear face of both the fixed stud and the moveable studare serrated on the back to prevent any reflection of light from thesurface interfering with the aiming of the rifle.

d. Receiver. The receiver (fig. 35) is machined to receive thebolt and is open at the forward portion for the ejection of cartridgecases. The rear portion is bridged; the front surface of the bridgeforming a locking shoulder and cam for the locking lug on the bolthandle (par. 8 c). Two tapped holes in the bridge of the receiverserve as a mounting for the rear sight assembly. A cam on the rearinside of the bridge of the receiver acts to start the initial backwardand final forward movement of the bolt (par. 13). A rectangulargroove extends the full length of the receiver on the left side. Thisgroove serves as a guideway for the ejector lugs, and prevents ro-tation of the bolt head. An extension to the rear of the receiver istapped for the rear guard screw. The front end of the receiver, whichseats in the stock, is tapped for the front guard screw. An oblonghole is provided in the bottom of the receiver for the magazine. An-other slot is provided for the sear. The ejector stop is mounted ina slot in the left back of the receiver.

e. Trigger Mechanism Group. The trigger mechanism (fig. 36)includes the sear, sear pin, trigger, and trigger pin. The sear ispivcted on a pin between the lugs on the receiver and the triggerpivots in a slot in the sear. The sear spring is seated in a seat in thefoc;-ard end of the sear and bears against the receiver bottom. The

36

TM 9-28011


SPRING, PIN, TRIGGER,"' 4 6SEAR A130010

.____--SEARB128416

TRIGGERC64032

RA PD 81845

Figure 36 - Sear and Trigger Group of U.S. Rifle, Cal. .22, M2

SPRING, MAGAZINEB147068

SPRING, RETAININGMAGAZINE-D2831

5 RA PD 81944

Figure 37 - Magazine Retaining Spring of U.S. Rifle, Cal. .22,M2 - Showing Position When Assembled

sear nose extends through the bottom of the receiver in the path of thesear notch of the cocking piece.

f. Magazine Retaining Spring. The magazine retaining springis formed with a flat base which fits into grooves in the receiver(fig. 37). A detent on the end of the base engages a depression inthe receiver and retains it in position. Lugs on the sides of the springact as guides for the magazine and a shoulder is provided for engage-

37

TM 9-28011


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TM 9-28011-12


ment with the retaining recess in the magazine. The lower end ofthe retaining spring is bent backward. The outer surface is serratedand extends slightly beyond the floor plate. Pressure on this serratedportion of the spring releases the magazine.

12. STOCK GROUP.a. The stock group includes the stock assembly, butt plate, floor

plate, trigger guard group, lower band, lower band swivel, and buttswivel assembly (fig. 38).

b. The stock is cut out at the top for the barrel, receiver, and rearsight. A shoulder is cut near the forward end as a seat for the lowerband, and the two projecting ends of a pin set in the stock hold theband in position. Grasping grooves are cut in the front sides of thestock. The top of the butt plate seat is mortised into the back ofthe butt. The bed of the stock is mortised to receive the magazine,floor plate, trigger-sear, and trigger guard groups.

c. The guard screw bushing fits tightly in a hole in the stockbetween the receiver and the rear tang of the trigger guard and servesto prevent the stock from being crushed when the guard screw istightened.

d. The butt plate is attached to the rear of the stock by two screws.e. The butt swivel assembly includes the butt swivel plate, the

butt swivel, and the butt swivel pin. The butt swivel pin retains thebutt swivel in place in the plate and two screws retain the butt swivelplate to the stock.

f. The floor plate fits into its mortise in the bottom of the stock(fig. 38). The tenon of the floor plate fits into a groove at the frontend of the trigger guard and with the assistance of the floor platecatch retains the floor plate securely in its place at the bottom of thetrigger guard. The lug of the floor plate is slotted to receive thefloor plate catch, and the lug has a tenon on its front end which fitsinto a slot in the trigger guard. Directly in back of the lug is a holethrough which the floor plate catch projects. The magazine springand magazine project through openings provided in the floor plate.

g. The trigger guard is set flush in the bottom of the stock and issecured in place by the two guard screws engaging drilled andthreaded lugs in the receiver.

h. The floor plate catch is secured to the trigger guard by meansof the floor plate catch pin. A floor plate catch spring, under the catch,maintains a tension on the catch for the retention of the floor plate.

i. The lower band is formed to the contours of the stock andbarrel and is positioned on the stock against the shoulder provided forit. The front or upper end of the lower band is designated by thestamped letter "U," which must be assembled with the open end

39

TM 9-28012-13

CALIBER. .22 RIFLES, ALL TYPES

facing the muzzle. The band is split at the bottom, the ends beingformed into ears which are machined and threaded for the lowerband screw. The swivel fits between the ears of the band.

13. FUNCTIONING.a. When the bolt handle is raised, the bolt head is kept from

rotating by its engagement with the ejector slot in the -receiver, andthe bolt sleeve is kept from turning by the cocking piece which seatsin its slot in the sleeve and a slot in the receiver.

b. The rotation of the-handle engages the locking lug with the lugon the bolt head, and causes the cocking cam on the rear of the handleto force the cocking piece backward until the cocking piece noseseats in its cock notch on the handle. The rearward movement ofthe cocking piece also retracts the firing pin to which it is attached,thus compressing the mainspring.

c. During the latter part of the handle movement, the sleeve lockenters its notch in the bolt handle and the extraction cam on thebolt handle engages a cam on the inner surface of the receiver, forcingthe bolt head, handle, and sleeve to the rear for about one-eighth ofan inch. This action brings the bolt back far enough so that the boltsleeve latch plunger is released, allowing the lock to lock the bolthandle and sleeve together. At the same time, the discharged car-tridge case is loosened from the chamber. The lift of the handle isstopped by contact with the receiver.

NOTE: On the M1, the bolt head latch plunger is depressed as ithits the bridge of the receiver when the handle is raised. This actionlowers the back end of the bolt head latch and raises the front endpermitting it to pass over the right-hand lug of the bolt head. Whenthe bolt is retracted and the bolt head latch passes out from the rearof the receiver bridge, the latch spring returns the plunger and latchto position, thus seating the latch between the two twin lugs on thebolt head and locking the bolt head and handle together.

d. As the bolt is retracted, it carries the discharged cartridge caseback with it, since the rim of the case is held by the hook of theextractor. Near the limit of retraction, the ejector strikes the ejectorstop. As the bolt continues its rearward movement, the ejector isheld stationary, so pushing the cartridge case out from under the hookof the extractor and ejecting it from the rifle to the right. The en-gagement of the ejector with the ejector stop prevents full withdrawalof the bolt from the receiver. The bolt handle is prevented fromturning by the eccentric bearing of the firing pin in the bolt head.

e. As the bolt uncovers the magazine on its retraction, the magazinespring and follower raises a cartridge partially out of the magazineuntil the rim is retained between the lips formed on the walls andthe cartridge is held in an inclined position with the bullet extending

40

TM 9-28013-14


up and out of the magazine. When the bolt is pushed forward, thelug on the bottom of the bolt head pushes the cartridge forward untilthe rim is released at the end of the magazine lips and forced up underpressure of the magazine spring into the recess in the bolt head faceand under the extractor. Further closing of the bolt pushes the car-tridge into the firing chamber of the barrel.

f. As the bolt sleeve contacts the back of the receiver, the boltsleeve lock plunger is depressed, thus unlocking the bolt sleeve fromthe handle and permitting the handle to be turned down. At the sametime, the lug of the cocking piece engages the sear in the bottom ofthe receiver holding the sear and firing pin stationary. As the handleis turned downward, the bolt assembly continues its forward move-ment as the cam on the locking lug bears against the locking shoulderin the receiver. The rifle is now cocked and ready to fire.

NOTE: On the M1 Rifle, as the bolt head latch passes the rear ofthe receiver bridge, the latch plunger is depressed. This action lowersthe back end of the bolt head latch and raises the front end unlockingthe bolt handle from the bolt head, thus permitting the handle tobe turned down.

g. As the finger piece of the trigger is drawn to the rear, its contactwith the receiver is transferred from the normal bearing surface onthe trigger to the trigger heel, which gives a creep to the trigger. Onthis preliminary pull, the trigger pivots on its pin, the bearing engagingthe receiver and partially rotating the sear around its pin, slightlydepressing the sear nose. The contact of the heel completes thepreliminary pull. Further pressure on the trigger releases the searnose from the cocking piece and the firing pin is driven forward bythe mainspring to strike the cartridge.

NOTE: In firing, unless the bolt handle is turned fully down, thecam on the cocking piece will strike the cocking cam on the bolt, andthe energy of the mainspring will be expended in closing the bolt in-stead of on the cartridge head. This prevents the firing of a cartridgebefore the bolt is closed.

Section III

REMINGTON RIFLE, CAL. .22, MODEL 513T

14. GENERAL.a. The Remington Rifle, cal..22, Model 513T (fig. 39), differs from

the U.S. rifles in its detailed construction of parts although it isbasically the same in mechanical operation and functioning.

41

TM 9-28014


0o ~ - o

· U

I.

42

TM 9-28014


co

IL

0

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0

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C.) C O O·0 ~ 9

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TM 9-28015


ii

RA PD 81899

Figure 40 - Bolt Group of Remingotn Rifle, Cal. .22, Model 513T

EXTRACTOR,RIGHT

EXTRACTOR, LEFT-32RA PD 81S79

Figure 41 - Bolt With Extractors Assembled of Remington Rifle,Cal. .22, Model 513T

15. BOLT GROUP.a. General. The bolt group is a semipermanent assembly and its

disassembly should not be undertaken in the field. It is removedfrom the rifle as a unit (fig. 40). It includes the bolt with extractors,the bolt handle assembly, the bolt sleeve and pin, and the firing pin

44

TM 9-28015


CAM, COCKING-24

Cal. .22, Model 513T

group composed of the firing pin assembly, mainspring plunger, safetyindicator, mainspring, and firing pin cam pin.

b. Bolt.(1)b.The bolt has two slots machined in the front, where the two

extractors are installed (fig. 41). The two extractors are retainedin position by pins. The rear end of each extractor rests upon op-posite ends of a spring extending through the bolt, the tension ofwhich keeps the head of the extractors against the bottom of their slots.

(2) On the under side of the bolt are cut the magazine clearancegrooves which are provided so that the bolt will clear the sides of themagazine tube. The lug in the center of the magazine clearancegrooves acts to remove the cartridge from the magazine.

(3) The sear slot on the under side of the bolt provides a meansfor the sear of the trigger mechanism to engage in the sear slot of thefiring pin when the bolt handle is raised and the rifle thus cocked.

(4) The front end of the bolt has the firing pin hole and ischambered to receive the base of the cartridge. The bolt is bored toreceive the firing pin and the rear portion is undercut to receive thebolt handle assembly and the bolt sleeve. In the undercut portionis a slot provided for the firing pin cam pin.

c. Bolt Handle Assembly. The bolt handle is permanently fas-tened to the cocking cam during manufacture (fig. 42). The cockingcam is provided with two cams which act against the firing pin cam

45

TM 9-28015


RA PD 81920

Figure 43 - Bolt Sleeve of Remington Rifle, Cal. .22, Model 513T

I T ---...POINT, FIRING PIN-42 PIN, FIRING-40 RA PD 81942

Figure 44- Firing Pin Assembly of Remington Rifle,Cal. .22, Model 513T

pin to force the firing pin to the rear and cock the rifle when the bolthandle is raised. A lug formed on the top of the cam hits the receiverto limit the lift of the handle.

d. Bolt Sleeve. The bolt sleeve (fig. 43) is bored to receive themainspring and safety indicator. It is serrated at its back end toprevent any reflection of light from its surface to interfere with theaiming of the rifle.

e. Firing Pin Group.(1) The firing pin assembly consists of the firing pin and the

firing pin point permanently assembled during manufacture (fig. 44).The firing pin has two undercuts to clear the ejector and the magazinewalls. The sear notch toward the rear end of the firing pin holds thefiring pin engaged with the sear against the pressure of the mainspringwhen the rifle is cocked. The rear of the firing pin is drilled to re-ceive the mainspring plunger. A hole in the rear receives the firingpin cam pin.

46

TM 9-28015-17


RA PD 31917

Figure 45 - Magazine Assembly of Remington Rifle,CGal. .22, Model 513T - Cutaway View

(2) The safety indicator is located inside the mainspring. Whenthe mainspring is compressed to the cocked position, the indicatorprotrudes through its hole in the rear of the bolt sleeve to indicatethat the firing mechanism is cocked.

(3) The mainspring plunger has a slotted hole in the rear as aclearance hole for the bolt sleeve pin.

(4) The mainspring is between the firing pin pointer and themainspring plunger. It is compressed by the action of the bolt handleforcing the firing pin and mainspring plunger to the rear. When itscompression is released, it forces the firing pin forward.

16. MAGAZINE ASSEMBLY.a. The magazine assembly includes the magazine tube, magazine

follower, magazine spring, and magazine bottom (fig. 45).b. The magazine spring maintains pressure against the follower

and, when the magazine is loaded, forces the cartridges to the top.Lips on the sides of the magazine retain the top cartridge until thebolt, as it is closed, moves the cartridge forward to a slot on eachside of the magazine permitting the cartridge rim to pass from themagazine and move into the firing chamber of the barrel.

17. REAR SIGHT ASSEMBLY.a. The Redfield 75 RT sight (fig. 46) is secured to the mounting.

block on the rear end of the receiver by a knurled thumbscrew. The47

TM 9-28017


PLATE, YOKE, REAR SIGHTREAR SIGHT / WINDAGE

WINDAGE INDEXKNOB, REAR W/ KNOB,

SIGHT ELEVATING /REAR SIGHT\i~ \ WINDAGE

DISK,REAR SIGHT

PLATE, REAR SIGHTELEVATING SLIDE

_ SE, REAR

SCREW, SCREW, SLIDE,REAR SIGHT REAR SIGHT REAR SIGHT

BASE MOUNTING ELEVATING PLATE ELEVATING RA PD 81910

Figure 46 - Rear Sight Assembly Mounted on Remington Rifle,Col. .22, Model 513T - Left Rear View

rear sight mounting block is attached to the rear end of the receiverby two screws. It is provided with two tapped holes, in either ofwhich the rear sight may be mounted.

b. The rear sight elevating slide fits into a recess in the rear sightbase and is moved up and down by means of the rear sight elevatingknob and screw. The rear sight elevating slide plate is mounted tothe base by two screws. The holes in this plate are elongated andprovide means of moving the plate up and down for adjustment.The rear sight elevating slide plate pointer is an integral part ofthe plate. This pointer and the graduation lines on the elevatingglide tell what elevation the sight is'set to. The graduation lines arein minutes of angle.

c. The rear sight disk screws into the rear sight windage yokewhich is so constructed that it slides over the top and bottom andinto the slot of the rear sight elevating slide (fig. 47). The rear sightwindage yoke and rear sight disk are moved laterally by means ofthe rear sight windage knob and screw which extends through thethreaded yoke. The front end of the yoke has a line scribed at itscenter. This line and the graduation lines on the rear sight windageindex plate' tell to what windage position the sight is set. ·The rearsight windage index plate is mounted on the front of the rear sightelevating slide by the rear sight windage index plate screw. The rear

48

TM 9-28017


YOKE, KNOB,REAR SIGHT REAR SIGHTWINDAGE ELEVATING

/a.; ^ PLATE,REAR SIGHT

ELEVATING SLIDEDISK, /I

REAR SIGHT ,

,,,!~~~~~ E~c~ BASE,REAR SIGHT

KNOB, /\vREAR SIGHT SCREW, a-DWINDAGE REAR SIGHT

WINDAGE

RA PD 81968

Figure 47 - Rear Sight Group of Remington Rife, Cal. .22,Model 13T- Right Front View

RAMP, FRONT-- ,SIG HT-503

BARREL-230

' LOCK, MAGAZINE-107

LEVER, SAFETY-- 251RA PD 81943

TRIGGER-29

Figure 48- Barrel and Receiver Group of Remington Rifle,Cal. .22, Model 513T

sight windage index plate screw hole is elongated and provides meansof moving the plate backwards and forward for adjustment.

d. The elevating and windage screws are controlled by micrometergraduated dial knobs fastened by set screws. Detent balls under

49

TM 9-28017-18

CALIBER .22 RIFLES, ALL TYPESBLOCK, REAR SIGHT EJECTOR-330

BASE MOUNTING

INSERT, RECEIVER,LEVER, SAF 25--1 RREAR-76

RA PD 81906

Figure 49- Receiver Section of Remington Rifle, Cal. .22,Model 513T - Bolt Removed - Top View

SPRING,

PLUNGER, TRIG GER TRIGGERSPRING-438 500

SEAR-83 ''-"-

TRIGGER-29

INCHESRA PD 81940

Figure 50 - Sear and Trigger Group ot Remington Rifle,Cal. .22, Model 513T

these knobs act as clicks, so that a distinct click is heard when theknobs are turned. Each click equals one-sixteenth inch at 25 yards,one-eighth inch at 50 yards, one-half inch at 100 yards, etc.

18. BARREL AND RECEIVER GROUP.a. The barrel and receiver group includes the barrel, receiver,

front sight, trigger mechanism group, safety lock group, magazinelock, front and rear receiver inserts, and ejector (fig. 48).

b. Barrel. The barrel is 27 inches long and the rifling consistsof six plain grooves 0.0025 inch deep. The twist is uniform right

50

TM 9-28018


hand, one turn in 16 inches. The breech of the barrel is recessed toreceive the ends of the two extractors. The barrel is pressed into thereceiver and held in place by means of two pins.

c. Receiver. The receiver is machined out to receive the boltgroup and is slotted to provide for the bolt handle (fig. 49). Holesare drilled in the receiver to provide means of mounting the rearsight block, safety, trigger, and ejector.

d. Front Sight. The front sight is of the ramped blade type andis secured to the front end of the barrel by means of two screws.Serrations on the back end of the ramp prevent any reflections oflight from its surface that might interfere with the aiming of the rifle.

e. Trigger Mechanism Group. The trigger mechanism group in-cludes the trigger, sear, trigger take-up spring, trigger spring plunger,trigger spring, and trigger cushion spring group (fig. 50). The triggeris pivoted on a pin which is pressed through the side of the receiver.The back of the sear is installed on the front end of the trigger bymeans of a pin. The front of the sear is mounted on the sear pivotscrew. This permits the sear to pivot on the forward end of the triggerwhen the trigger is pulled. The upper portion of the sear extendsinto the receiver well where it can engage with the sear notch in thefiring pin. A trigger spring and trigger spring plunger are located inthe trigger heel. (A trigger take-up spring in bottom of trigger givestension between trigger and sear.) This plunger contacts the safetylock mounted in the right wall of the receiver and the plunger springputs a tension on the trigger. A trigger cushion spring is mounted onthe bottom of the receiver by means of a screw. Screws in both endsof this spring engage the trigger and sear and may be adjusted tosecure any desired trigger pull.

NOTE: In rifles of early manufacture, the trigger cushion springgroup is composed of a cylindrical housing which is screwed into thereceiver and locked in place by a lock nut. Within the housing isassembled a plunger, spring, and retaining screw. Adjustment is ob-tained by means of the retaining screw.

f. Safety Lock. The safety lock is mounted in the receiver bymeans of a safety lock screw which also holds the safety lever onthe outside of the receiver and attaches the lever to the lock. Thesafety lever is keyed to permit it to engage in two slots in the safetylock. When the safety lever is moved to the "safe" position, the safetylock engages the top of the trigger, preventing movement.

g. Magazine Lock. The magazine lock (spring) is mounted bytwo screws on the bottom of the rear receiver insert and serves toretain the magazine in position in the rifle.

h. Ejector. The ejector is mounted in the bottom of the receiverwell on the rear receiver insert by means of the ejector screw and the

51

TM 9-28018


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TM 9-28018-20


sear pivot screw. The sear pivot screw passes through the pivot holein the sear, the ejector, and the rear receiver insert. The screwheadscrews into the left side of the receiver.

19. STOCK GROUP.a. The stock group includes the stock, the front and rear swivels,

magazine guide plate, trigger guard, and butt plate (fig. 51).b. The stock is cut out at the top for the barrel and receiver. The

side of the stock is cut away for the bolt handle. The front of thebottom of the stock is mortised to receive the front swivel base.

c. The front swivel is attached to, front swivel base by means of ascrew. Seven tapped holes in the swivel base permit moving theswivel for adjustment of handhold with relation to the sling. Therear swivel is attached to the stock by means of a screw which is partof the assembly.

d. The magazine guide plate is attached to the bottom of the stockby one wood screw and the screw which retains the barrel andreceiver in the stock.

e. The trigger guard is attached to the bottom of the stock bymeans of two wood screws.

f. The butt plate is attached to the rear of the stock by twobutt plate screws.

20. FUNCTIONING (fig. 39).a. When the bolt handle is raised to the unlocked position, the

sleeve portion of the handle rotates around the bolt which is pre-vented from turning by the engagement of the ejector with thegrooved bottom of the bolt. A pin extending through the rear ofthe firing pin and through slots in the bolt wall engages the camsurface in the handle sleeve. The rotation of this cam, when thehandle is raised, forces the firing pin to the rear against the plungerand indicator, compressing the mainspring and setting the firing pinin firing position. When the firing pin has reached its cockedposition, the sear notch is directly over the sear which then risesunder the indirect action of the trigger spring, and enters the notch.The trigger, being pivoted on the sear, returns to firing position atthe same time.

b. As the bolt is retracted, the cartridge case, held against thebolt head by the two extractors,. is extracted from the chamber.Just before the bolt is fully retracted, the cartridge case strikes theejector and as the bolt is further retracted, the cartridge rim is forcedout from the sloping claw of the left extractor, is pivoted to the rightaround the right extractor hook, and thrown out of the receiverupward and to the right. The engagement of the sear nose with thelug between the magazine clearance grooves prevents full withdrawalof the bolt from the receiver.

53

TM 9-28020-22


c. As the bolt uncovers the magazine during retraction, themagazine spring and follower raise a cartridge partially out of themagazine where the rim is retained between the lips formed on thewalls so that the cartridge is held in an inclined position with thebullet extending up and out of the magazine. When the bolt ispushed forward, the lug on the bottom of the bolt head pushes thecartridge forward until the rim is released at the end of the maga-zine lips and forced up under pressure of the magazine spring into therecess in the bolt head face and under the extractors. Furtherclosing of the bolt seats the cartridge in the barrel chamber. Turn-ing the handle down locks the bolt, leaving the firing pin held bythe sear notch in position for firing.

d. When the trigger is pulled to the rear, it pivots on its mountingpin dropping its front end down. This causes the back of the sear,which pivoted on the trigger, to be disengaged from the sear notchin the firing pin. Then tension of the mainspring is then releasedand forces the firing pin forward to strike the cartridge.

Section IV

STEVENS RIFLE, CAL. .22, MODEL 416-2

21. GENERAL.a. The Stevens Rifle, cal. .22, Model 416-2 (fig. 52) differs from

the U.S. rifle and other commercial rifles in its detailed constructionof parts although basically the same in mechanical operation andfunctioning.

22. BOLT ASSEMBLY.a. General. The bolt assembly of the Stevens rifle may be re-

moved as a unit (fig. 53). It is a semipermanent assembly and itsdisassembly should not be undertaken in the field. It includes thebolt head group, bolt handle and body group, and firing mechanismgroup.

b. Bolt Head Group.(1) This group consists of the bolt head and two extractors

(fig. 54).(2) On the under side of the bolt are cut the magazine clearance

grooves which permit the bolt to pass over the magazine. The lugbetween the grooves acts to remove the cartridge from the magazine.

(3) On the rear is the hole for the bolt head retaining pin andthe slot for the bolt head stop plunger. The head is bored to receivethe firing pin, firing pin spring, firing pin extension, and the undercutportion of the bolt handle and body.

54

TM 9-28022


(4) The front of the bolt head is chambered to receive thecartridge rim and has the firing pin hole through which the firingpin passes to strike the cartridge. The extractors are mounted inslots in the front of the bolt head and are retained in place by thetension of the extractor plunger springs and extractor plungers.

c. Bolt Handle and Body Group.(1) This consists of the bolt handle and bolt body permanently

assembled during manufacture (fig. 55). On the back of the bolthandle is a cam which operates on the rear of the bolt handle slotin the receiver and forces the bolt to its extreme forward positionto finish cocking the rifle when the bolt handle is returned to closedposition. At the forward position of the bolt body is the extensionupon which the bolt head is assembled. This extension is slotted toreceive the bolt head retaining pin. The bolt head stop plunger andspring are assembled in a hole in the front. The plunger engagesits slot in the rear of the bolt head when the bolt handle is raised.

(2) A sear recess is cut in the bolt handle and body to form aramp on which the sear rides when the bolt is moved forward orbackward. Just ahead of the ramp, a slot provides clearance forthe sear nose to hold the striker in cocked position when the bolthandle is lowered after cocking.

(3) A slot at the rear of the bolt body permits the installationof the striker and mainspring retainer which holds the mainspring,striker, and striker collar in position in the bolt body. The camat the extreme rear, acting on the cocking piece which is held sta-tionary by its slot in the receiver, cocks the rifle when the bolt handleis raised.

d. Firing Mechanism Group.(1) This group consists of the firing pin spring, firing pin, firing

pin extension, striker, mainspring, striker collar, striker and main-spring retainer, and the cocking piece (fig. 56).

(2) The firing pin spring is a small coil spring assembled over thesmall end of the firing pin and acts to keep the firing pin againstthe firing pin extension when the rifle is cocked.

(3) The firing pin is machined with three different diameters.The front diameter acts as the striker, the center diameter acts asa bearing for the firing pin when it is in the bolt head, and the reardiameter forms a shoulder to limit the forward movement againsta shoulder in the bolt head.

(4) The firing pin extension is assembled in the front of the bolthandle and is what its name implies: an extension between the r6arend of the firing pin and the front end of the striker.

(5) The striker has two diameters. The forward or large diameteracts as the front bearing of the striker in the bolt body. In thissame diameter, the sear notch is cut for engaging the sear when therifle is cocked. The small diameter receives the mainspring. In

55

TM 9-28022


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TM 9-28022

CALIBER .22 RIFLES. ALL TYPES

RA PD 81903

Figure 53 - Bol Assembly of Stevens Rifle, Cal. .22, Model 416-2

EXTRACTOR,LEFT

-E AEXTRACTOR, RIGHT RA PD 81885

Figure 54 - Bolt Head Group of Stevens Rifle,Cal. .22, Model 416-2

the end of the striker, a hole is drilled to receive the cocking pieceretaining pin. At the end of the mainspring is placed the strikercollar. The striker, mainspring, and striker collar are assembled inthe bolt body and retained in place by the striker and mainspringretainer.

(6) The cocking piece is bored out and assembled over the endof the striker where it is attached by the cocking piece pin. Thelug on the bottom of the cocking piece enters a groove in the bottomof the receiver and keeps itself and the striker from turning whenthe rifle is being cocked by raising the bolt handle. A red dimple

58

TM 9-28022-24


HANDLE, BOLT

BODY, BOLT

RA PD 81960

Figure 55 - Bolt Handle and Body Group of Stevens Rifle,Cal. .22, Model 416-2

in the top of the cocking piece indicates when the firing mechanismis in the cocked position.

23. MAGAZINE ASSEMBLY.a. The magazine assembly consists of the magazine tube (assem-

bly), magazine follower, magazine follower spring, and magazinefloor plate (fig. 57).

b. The magazine tube (assembly) consists of four walls: front,rear, left, and right. The magazine follower is retained in these fourwalls, and forces cartridges to the top of the magazine, by the actionof the magazine follower spring. Lips retain the top cartridge untilit is moved forward to a slot in each side of the magazine permittingthe cartridge rim to pass out of the magazine. The magazine floorplate retains the follower spring in position.

24. REAR SIGHT GROUP ASSEMBLY.a. The rear sight group assembly is a Stevens rear sight. It con-

sists of the rear sight base with two (mounting) screws, and the rearsight windage slide group which includes the elevating parts (fig. 58).

b. The inside of the rear sight base is machined to fit the contourof the receiver to which it is attached by two screws. The upperportion of the base is recessed to receive the rear sight windage slide.

c. The rear sight windage slide is an inverted L-shaped part. the

59

TM 9-28024


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TM 9-28024


RA PD 81916

Figure 57- Magazine Assembly of Stevens Rifle, Cal..22,Model 416-2 - Cutaway View

bottom of which is machined to fit into its recess in the rear sightbase. A hole in the bottom right side is drilled and tapped to receivethe rear sight windage screw. A slot in the bottom opposite this holeis provided for the screw to operate in.

d. Over the end of the windage screw and onto the right side ofthe base are mounted the rear sight windage screw bridge, click, andknob. The click and bridge are attached by means of two rear sightwindage screw bridge screws. The rear sight windage screw knobis attached to the rear sight windage screw by means of a pin. Whenthe knob is turned, either to the right or left, it moves the rear sightwindage slide by means of the rear sight windage screw. When theknob is turned a distinct click is heard, as there are six small groovescut in the rear face of the knob which engage the click.

e. The upper portion of the rear sight windage slide is cut out toreceive the rear sight elevating slide which is grooved to fit into andover the sides of the cut-out. The back of the elevating slide isdrilled and tapped to receive the rear sight disk assembly and theright side is drilled and tapped to receive the rear sight elevatingscrew (fig. 59). The elevating slide moves up and down when theelevating screw is turned by means of the rear sight elevating screwknob, the elevation being indicated on the scale on the right side ofthe windage slide.

TM 9-28024

CALIBER .22 RIFLES, ALL TYPESKNOB, REAR SIGHT

DISK, REAR ELEVATING SCREW CLICK, REAR SIGHTSIGHT, ASSEMBLY E LEVATING SCREW KNOB

SLIDE,~~~~~~SLIDE, REARSLIDE, REAR SIGHT WINDAGESIGHT ELEVATING' -. ! .~ SIGHT WINDAGE

CLICK, REARSIGHT WINDAGE

SCREW KNOB

KNOB, REAR SIGHTWINDAGE SCREW.

RA PD 81878

Figure 58 - Rear Sight Group Assembly Mounted on StevensRifle, Cal. .22, Model 416-2 - Right Top View

KNOB, REAR SIGHT_ CLICK, REARELEVATING SCREW SIGHT ELEVATING

SCREW KNOB

DISK, REAR- " m •SIGHT, ASSEMBLY

KNOB,/"REAR SIGHT,WINDAGE SCREW, REAR

SCREW SIGHT WINDAGE

BASE. REARSIGHT

RA PD 81967

Figure 59 - Rear Sight Assembly of Stevens Rifle, Cal. .22,Model 416-2 - Left Front View

62

TM 9-28024-25

DESCRIPTION AND FUNCTIONINGSIGHT, FRONT

RECEIVER

BARREL

HOUSING, MAGAZINESEAR \(WITH EJECTOR)

SAFETY RETAINER,MAGAZINETRIGGER RA PD 81957

Figure 60- Barrel and Receiver Group of Stevens Rifle,Cal. .22, Model 416-2

SEARTRIGGER

- ~ ~ BLOCK, TELESCOPE-L* - SAFETY DOVETAIL, REAR

RA PD 81907Figure 61 - Receiver Section of Stevens Rifle, Cal. .22,

Model 416-2 - Bolt Removed - Top View

f. Over the top of the elevating screw, the rear sight elevatingscrew knob click and the rear sight elevating screw bridge are mountedto the top of the rear sight windage slide by means of two screws. Therear sight elevating screw knob is attached to the end of the screwby means of a pin. Six small grooves cut in the rear face of the knobcontact the raised portion of the click, so that a distinct click is heardwhen the knob is turned.

25. BARREL AND RECEIVER GROUP.a. The barrel and receiver group consists of the barrel and receiver,

trigger mechanism group, safety group, and magazine housing group(fig. 60).

b. Barrel and Receiver.(1) This is a permanent assembly pressed together and secured

by means of a pin. The barrel is 26.12 inches long and the rifling

63

TM 9-28025


SPRING,TRIGGER STOP

PLUNGER

~.../~' NUT, TRIGGERPLUNGER, ~ \\. STOP PLUNGER

TRIGGER STOP ST P

TRIGGER ~_ _- ,

SPRING, TRIGGERS SCREW, TRIGGERSIDE PLAY

RA PD 81844

Figure 62 - Sear and Trigger Group of Stevens Rifle, Cal. .22,Model 416-2 - Exploded View

RETAINER,a-|_ vMAGAZINE

HOUSING,

(WITH EJECTOR)

EJECTOR

RA PD- 81956

Figure 63 - Magazine Housing and Magazine Retainer Group ofStevens Rifle, Cal. .22, Model 416-2 - Exploded View

64

TM 9-28025


consists of six plain grooves 0.0025 inch deep. The twist is uniformright hand, one turn in 16 inches. The breech of the barrel is recessedto receive the ends of the two extractors in the bolt.

(2) A dovetail groove is provided in the front of the barrel formounting the front sight which may be either of the blade or hoodtypes. The hood type is composed of a hood with a lateral slot inthe center of the hood to receive one of five inserts (fig. 12). Theinserts have two holes in the bottom corners to engage spring func-tioned detent balls assembled in the rear of the hood and projectinginto the slot. The balls are held in position by a spring and screw.

(3) A front telescope dovetail block is attached at the rear of thebarrel by means of two screws for the purpose of mounting a tele-scope (sight) if desired.

(4) The receiver is machined out to receive the bolt assembly(fig. 61). A slot in the lower portion of the receiver well acts as astop to keep the cocking piece from turning when the rifle is cocked.On the top of the receiver, the rear telescope dovetail block is mountedby means of two screws. Two drilled and tapped holes are providedon the left side for mounting the rear sight. A recess and two holesare provided on the right side as a means for mounting the safety.A slot in the bottom at the rear provides a means for mounting thetrigger assembly. The sear stop screw is permanently assembledjust forward of the sear post which projects from the bottom of thereceiver. A flat surface is machined on the forward bottom part ofthe receiver for the s'ear spring plunger to rest on and for the mount-ing of the magazine housing. On this flat surface, the magazine andejector slots are cut out.

c. Trigger Mechanism Group.(1) This group consists of the trigger assembly and the sear

(fig. 62).(2) The trigger assembly consists of the trigger, trigger. stop

plunger, trigger stop plunger nut, trigger stop plunger spring, thetrigger spring, two trigger side play screws, and the trigger side playscrew spring.

(3) The trigger is mounted in its slot in the bottom of the receiverby means of a trigger pin.

(4) The trigger stop plunger, nut, and spring are assembled to atapped hole in the boss at the rear of the trigger. Adjusting thetrigger stop plunger sets the amount of trigger travel.

(5) The trigger side play screws and spring are assembled in atapped hole in the lower part of the trigger and serve as a means ofadjusting the side play of the trigger.

(6) The trigger spring is pinned to the top of the trigger and actsagainst the sear which in turn maintains a pressure on the trigger.

(7) The sear is secured to the sear post on the bottom of thereceiver by means of a pin.

65

TM 9-28025


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TM 9-28025-26


(8) The sear spring plunger and sear spring are mounted in a holein the forward portion of the sear. Pressure of this spring andplunger against the bottom of the receiver keeps the sear nose in itsextreme upright position against its stop on the receiver.

d. Safety Group. The safety and safety spring are mounted onthe side of the receiver by means of two screws. The screw holes inthe safety are elongated permitting it to move to the front or rear.When moved forward or backward, the lug on the safety spring seatsinto one of two grooves in the safety keeping the trigger in the "ready"or "safe" position.

e. Magazine Housing Group. The magazine housing is a 1-piecestamping and serves with the magazine retainer to hold the magazinein position (fig. 63). It is mounted on the bottom-of the receiver bymeans of the magazine retainer post and a magazine housing screw.On the top part of the magazine housing is the ejector which is formedas part of the housing and fits into a slot in the bottom of the receiverwell. This acts to eject' the cartridge case when the bolt is drawnbackwards. The magazine retainer is mounted by means of themagazine retainer post, and retains the magazine in its housing. Themagazine post retainer screw extends through guard and stock andthreads into the post to hold stock and receiver together. Pressing onthe serrated portion of this retainer releases the magazine from thehousing.

NOTE: In rifles of recent manufacture, the magazine housingis fastened to the receiver by a short (front) and long (rear)cap screw. The barrel and receiver are held together at the rearby a barrel stud (similar in appearance to the magazine retainer post)which screws into the barrel just ahead of the receiver, and a barrelstud screw which extends through the front end of (trigger) guardand stock, and threads into the barrel stud. The barrel and stockare held together at the front end by a barrel band, screw, and nutin place of the barrel screw passing through the swivel plate andstock and threading into the under side of the barrel.

26. STOCK GROUP.a. The stock group includes the stock, front swivel plate, front

and rear swivels (trigger), guard, and butt plate (fig. 64).b. The stock is cut out at the top to receive the barrel and receiver

group. The side of the stock is cut away for the bolt handle. Thefront bottom of the stock is mortised to receive the front swivel plate.

c. The front swivel plate is mounted by means of the front barrelscrew which extends through the stock and threads into the barrel,and the swivel plate screw. It has seven tapped holes for receivingthe front swivel screw for adjustment of handhold with relation tothe sling.

67

TM 9-28026-27


d. The front and rear swivels are both the same and serve as ameans of attaching the sling to the rifle. The front swivel is mountedto the front swivel plate and the rear swivel is attached to the rearswivel escutcheon screwed into the butt of the stock.

e. The guard is mounted on the bottom of the stock. A cut-outin the guard serves as an opening for the magazine.

f. The butt plate is attached to the rear of the stock by means oftwo wood screws.

27. FUNCTIONING (fig. 52).a. Raising the bolt handle rotates the rear portion of the bolt

in the receiver. The bolt head is prevented from rotating becausethe ejector, which is part of the magazine housing, is seated in aslot in the bolt head. The firing pin is held against rotation becausethe cocking piece is held in a slot in the receiver. As the bolthandle is raised, a cam on the rear of the bolt engages the cockingpiece forcing it and the striker to the rear and compressing themainspring against the striker collar at the rear of the bolt body.This retraction of the striker permits the sear to enter the searnotch in the striker under pressure of the sear spring and plunger.As the back of the sear pivots upward, it returns the trigger to firingposition.

b. As the bolt is retracted, the two extractors holding the cartridgeagainst the bolt head, pull the case from the firing chamber of thebarrel. Just before the bolt is fully retracted, the cartridge casestrikes the ejector. As the bolt is further retracted, the cartridge rimis forced over the claw of the left extractor, is pivoted to the rightaround the right extractor hook, and thrown out of the receiverupward and to the right. The engagement of the sear nose with theback end of the bolt head stops the rearward movement of the bolt.

c. As the bolt uncovers the magazine during its retraction, the mag-azine spring and follower raises a cartridge partially out of themagazine where the rim is retained between the lips formed onthe walls, and the cartridge is held in an inclined position 'with thebullet extending up and out of the magazine. When the bolt ispushed forward to its closed position, the lug on the bottom of thebolt head pushes the cartridge forward until the rim is released atthe end of the magazine lips and forced up under pressure of themagazine spring into the recess in the bolt head face and under theextractors. As the bolt reaches its foremost position, the cartridgeis seated in the chamber of the barrel.

{. Putting the bolt handle down to the locked position rotates thecocking cam surface away from the cocking piece leaving the strikerheld in the sear notch in firing position.

68

TM 9.28027-29


e. When the trigger is pulled, its forward extension depresses thesear and disengages it from the sear notch in the striker. The main-spring then drives the striker -against the firing pin extension whichin turn drives the firing pin against the cartridge rim.

Section V

WINCHESTER RIFLE, CAL. .22, MODEL 75

28. GENERAL.a. The Winchester Rifle, cal. .22, Model 75 (fig. 65) differs from

the other commercial rifles in its detailed construction of parts al-though basically the same in its mechanical operation and functioning.

29. BREECH BOLT ASSEMBLY.a. The breech bolt assembly consists of the breech bolt group,

breech bolt cocking sleeve assembly, breech bolt sleeve, and firing pingroup. It can be removed from the rifle as a unit (fig. 66).

b. Breech Bolt Group. The breech bolt group consists of the.breech bolt and the extractors (fig. 67). The extractors are mountedin the two slots provided in the head of the breech bolt and are re-tained in place by two pins. A spring is mounted in a hole at theback end of each extractor. The forward portion of the bottom ofthe bolt is cut away for magazine and ejector clearance so that thebolt can slide over the magazine. The lug in the center serves toremove the cartridge from the magazine. The front end of the boltis chambered to receive the cartridge rim and has the firing pin holethrough which the striker end of the firing pin passes to strike thecartridge. The back portion is undercut to receive the breech bolthandle and the breech bolt sleeve. A hole in the front part of theundercut receives the firing pin stop pin. A hole in the rear receivesthe breech bolt sleeve pin. The breech bolt is bored out to receivethe firing pin. A slot cut in the center at the bottom acts as a guide-way for the firing pin.

c. Breech Bolt Cocking Sleeve Assembly. The breech boltcocking sleeve assembly consists of the breech bolt handle and thebreech bolt cocking sleeve formed at the rear (fig. 68). The back ofthe bolt handle acts against a chm surface on the receiver to force thebreech bolt forward when the handle is lowered. The breech boltcocking sleeve has a slot and cam formed on its under side. Whenthe bolt handle is lowered, the cam acts against the cocking piece inthe top of the firing pin to bring the firing pin rearward against thepressure of the firing pin spring until the cocking piece on the firing

69

TM 9-28029


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RA PD 81902

Figure 66 - Breech Bolt Assembly of Winchester Rifle,Cal. .22, Model 75

EXTRACTOR,L H

1 ii~

' DEXTRACTOR, R.H. RA PD 8195S

Figure 67 - Breech Bolt Group of Winchester Rifle,Col. .22, Model 75

pin is in the cocked position. A clearance notch for the safety leveris formed in the rear of the cocking sleeve just above the cocking cam.

d. Breech Bolt Sleeve. The breech bolt sleeve fits over the endof the breech bolt and is retained to it by the breech bolt sleeve pin(fig. 69). It acts as an enclosure for the firing pin spring (main-spring). The breech bolt plug is assembled in the end of the breech

72

TM 9-28029


HANDLE,BREECH BOLT

SLEEVE,BREECH BOLT

COCKING

RA PD 81876

Figure 68 - Breech Bolt Cocking Sleeve Assembly ofWinchester Rifle, Cal. .22, Model 75

PLUG,BREECH BOLT

BREECH BOLT

RA PD 81882

Figure 69 - Breech Bolt Sleeve and Breech Bolt Plug ofWinchester Rifle, Cal..22, Model 75

bolt sleeve and acts as the rear stop for the firing pin spring. It isretained in place by the same pin that retains the bolt sleeve.;

e. Firing Pin Group. The firing pin group consists of the firingpin, firing pin stop pin, and the firing pin spring (fig. 70). The firingpin is of 1-piece construction. On the front end is formed the striker.The firing pin has of -pieceat surfaces, and these together with the slot formed

73

TM 9-28029


PIN, FIRING

SPRING,FIRING PIN

PIN, BREECHBOLT SLEEVE

RA PD 81884

Figure 70 - Firing Pin Group of Winchester Rifle, Cal. .22,Model 75 - Exploded View Showing Position When

Assembled in Breech Bolt

RA PD 81'922

Figure 71 - Magazine Assembly of Winchester Rifle, Cal. .22,Model 75 - Cutaway View

in the breech bolt act as a guide for the firing pin in the breech bolt aswell as to keep it from turning when the rifle is cocked. The firingpin stop pin which passes through a slotted hole in the rear of thefiring pin, acts as a stop for the firing pin. A lug formed at the rear of

74

TM 9-28029-31

DESCRIPTION AND FUNCTIONINGKNOB, REAR SIGHT

SCREW, REAR ELEVATING SCREW SLIDE, SLIDE, REAR SIGHTSIGHT BASE REAR SIGHT WINDAGE

Is \ SCALE, REARSIGHT ELEVATING

DISK,REAR SIGHT

SCREW, REAR

BOLT, REARSIGHT LOCK

BASE, REAR

ELEVATINGSCALE

RA PD 81890

Figure 72 - Rear Sight Assembly Mounted on Winchester Rifle,Cal. .22, Model 75 - Left Rear View

the firing pin engages the sear. A small lug on the rear engages thecocking cam of the breech bolt cocking sleeve.

30. MAGAZINE ASSEMBLY.a. The magazine assembly consists of the magazine sides, the

magazine front and rear ties, magazine follower, magazine spring, andmagazine base (fig. 71). The follower fits into the tube formed bythe sides and ties and, by means of the pressure of the magazine springon it, forces cartridges to the top. Lips retain the top cartridge untilit is moved forward to a slot in each side of the magazine sides per-mitting the cartridge rim to pass out of the magazine. A lug formedon the left side of the magazine side engages a slot in the magazinecatch on the magazine holder in the receiver to hold the magazinein position.

31. REAR SIGHT GROUP ASSEMBLY.a. A Lyman 57E rear sight is mounted by two screws threading

into two tapped holes on the left side of the receiver (fig. 72).b. On the front of the rear sight elevating base is stamped "O-,"

which, when in line with the elevating scale on the rear sight slide,gives the elevation to which the sight is set. The rear sight base isgrooved on the left side to take the rear sight elevating slide and

75

TM 9-28031

CALIBER .22 RIFLES, ALL TYPESSLIDE, REAR

SIGHT WINDAGE SCALE, REARSIGHT WINDAGE

DISK,REAR SIGHTREAR SIGHT

ELEVATING SCREW

SCREW, REARSIGHT ELEVATING

BASE,KNOB, REAR SIGHTREAR SIGHTWINDAGE

SCREW

RA PD 81966

Figure 73 - Rear Sight Assembly of Winchester Rifle, Cal. .22,Model 75 - Right Front View

drilled and tapped to take the rear sight elevating screw. The rearsight base- is longitudinally drilled for the rear sight lock bolt andspring.

c. The lock bolt has an elongated hole drilled in it, the front sideof which is threaded to engage the elevating screw and slide. Theforward portion of the lock bolt is undercut for the lock bolt spring.When the lock bolt is depressed against the spring pressure, thethreads on the lock bolt are disengaged from the threads on the ele-vating screw allowing the removal of the elevating screw.

d. The rear sight elevating screw and knob are made in 1 piece(fig. 73). It is retained to the rear sight slide by a U-shaped rearsight elevating screw retainer. The knob has a knurled head with ascale beneath it. The scale is marked off in 12 graduations whichcorrespond to the 12 slots or serrations on its under side. These 12slots engage a raised portion of the rear sight elevating screw knobclick. This click is made in a form of a round spring with 2 lugswhich fit into'a corresponding female machined surface on the top ofthe elevating slide. A raised portion on the click engages the slotsor serrations in the bottom of the knob with the result that, whenthe elevating screw knob is turned, a distinct click is heard.

e. The rear sight elevating slide is ari inverted L-shaped piece towhich is assembled the rear sight elevating scale, the rear sight wind-

76

TM 9-28031-32


BLADE, FRONT SIGHT

LEVER RECEIVERSAFET

_4-\ : ~~ X ~~BARREL

'S TRIGHOLDER,MAGAZINE

-TRIGGER 8RA PD 81947

Figure 74 - Barrel and Receiver Group of Winchester Rifle,Cal. .22, Model 75

age slide, and the rear sight disk (fig. 72). The elevating scale ismounted on the side of the slide. The attaching hole in the center ofthe scale is elongated providing means of adjustment. The rearsight stop screw is mounted on the top of the slide. This screw actsas a stop for the slide and is adjustable. The top of the elevating slideis slotted to receive the rear sight windage slide and the screw andknob.

f. The windage slide is drilled and tapped to receive the rear sightwindage screw and moves along on its threads when the screw isturned (fig. 73). At the end of the slot, the windage screw knobclick is installed by means of two pins. The raised portion in theclick engages the slots in the bottom of the knob so that when theknob is turned a distinct click is heard. The upper portion of thewindage slide is drilled and tapped to receive the rear sight disk.Turning the windage knob moves the rear sight windage slide anddisk to the right or left. A rear sight windage scale is mounted onthe front of the top portion of the slide. Its attaching hole is elongatedfor adjustment by loosening its attaching screw.

32. BARREL AND RECEIVER GROUP.a. The barrel and receiver group consists of the barrel group and

receiver, trigger mechanism group, safety group, magazine holdergroup, and ejector (fig. 74).

b. Barrel Group. The barrel group includes the barrel, frontsight, and stock stud. The barrel is 28.12 inches long and the riflingconsists of six plain grooves 0.0025 inch deep. The twist is uniformright hand, one turn in 16 inches. The tenon at the rear is threadedfor the purpose of securing the receiver to the barrel. Four tappedholes, two at the rear and two in the center of the barrel, are provided

77

TM 9-28032


EJECTOR

LEVER, SAFETY RA PD 81909

Figure 75 - Receiver Section of Winchester Rifle, Cal. .22,Model 75 - Bolt Removed - Top View

TRIGGER

LOCK,/"

SAFETY

SCREW,

SPRING,TRIGGER

/--+ |PLUNGER,SPRING, SAFETY SAFETY LOCKLOCK PLUNGER

RA PD 81840

Figure 76 - Sear and Trigger and Safety Lock Groups ofWinchester Rifle, Cal. .22, Model 75 - Exploded View

as a means of attaching a telescopic sight. The holes are plugged withscrews. The breech of the barrel is recessed to receive the extractors.A dovetail is machined on the top front to receive the front sight.Another dovetail on the bottom at the receiver end secures thestock stud. The rear end of the barrel is mounted to the stock by ascrew through the stock and into the stock stud. The front of thebarrel is mounted by means of the barrel band, band screw, andbarrel band screw bushing. The front sight is of the blade type andis a drive fit in the dovetail of the barrel.

78

TM 9-28032


SCREW, X

MAGAZINE CATCH

CATCH, MAGAZINE

HOLDER, MAGAZINE

SCREW,MAGAZINE HOLDER

RA PD 81886Figure 77 - Magazine Holder Group of Winchester Rifle,

Cal. .22, Model 75 - Exploded View

c. Receiver. The receiver is chambered to receive the bolt andis slotted on one side to form a locking shoulder for the bolt handle(fig. 75). A cam on the top rear side of the slot together with thecam on the bottom front section of the bolt handle helps to force thebolt to its extreme forward position when the bolt handle is closed.Two tapped holes on the left side provide for the mounting of therear sight. Suitable openings are provided in the bottom of thereceiver for the magazine and sear end of the trigger. A dovetail ismachined at the bottom to the rear to receive the trigger base. Aslot in the rear of the receiver provides for the safety lever- latch. Ahole is provided on the right side for the safety lever stop pin. Justback of this pin, the words "FIRE" and "SAFE" are stamped.

d. Trigger Mechanism Group. The trigger mechanism groupconsists of the trigger, trigger base, trigger pin, trigger spring, andtrigger spring adjusting screw (fig. 76). The trigger and sear arecombined in one piece and mounted between the lugs of the triggerbase, .assembled to the receiver, by the trigger pin. Suitable holesare provided in the bottom of the trigger to provide for the safetylock screw and the safety lock plunger and plunger spring. The trig-ger spring and trigger spring adjusting screw are installed in the rearportion of the magazine holder. The spring bears against the underportion of the trigger and may be adjusted by means of the adjustingscrew to alter the trigger pull. Vd

TM 9-28032-33


INCHES

RA PD 81951

Figure 78 - Ejector of Winchester Rifle, Cal. .22, Model 75

e. Safety Group. The safety group includes the safety lock, thesafety lock plunger, plunger spring, and safety lever. The safety lockis attached to the under side of the trigger-sear extension by means ofthe safety lock screw. The safety lock spring and plunger are locatedin a hole in the forward portion of the trigger and engage a detent inthe safety lock. The safety lever is mounted on the trigger pin. Thislever has two extensions at the lower end. One engages a slot in thesafety lock and the other extends through the wall of the receiverand prevents the opening of the bolt when it is in the "safe" positionby engaging the safety lock slot in the breech bolt cocking sleeve.At the same time, the safety lock is pushed forward and engages anundercut in the magazine holder to prevent trigger movement.

f. Magazine Holder Group. The magazine holder group includesthe magazine holder and the magazine catch (fig. 77). The maga-zine holder is mounted on the bottom of the receiver by two maga-zine holder screws. The magazine catch is attached to the right sideof the holder and is provided with a slot, which engages a lug on theside of the magazine. This lug is disengaged from the magazine catchby means of the magazine release plunger in the side of the stock.

g. Ejector. The ejector is mounted crosswise in the bottom ofthe receiver and is retained in place by means of the rear magazineholder screw (fig. 78). It is slotted in the center for the passage ofthe lug on the front of the breech bolt. A lug on the left side of theslot stops the backward movement of the cartridge and forces it fromthe left extractor hook and, with the help of the cam on the rightside of the ejector, ejects the cartridge from the receiver.

33. STOCK GROUP.a. The stock group includes the stock, magazine release group,

barrel band, forearm adjustment base, forearm adjustment swivelbow assembly, stock swivel bow assembly (trigger), guard, and buttplate (fig. 79).

b. The stock is cut out at the top to 'receive the barrel, receiver,breech bolt handle, and rear sight.

80

TM 9-28033s


* Z

<mm <, n M -

J I > i oi 1 e <~~~~~

,~-x

~-0~ 0 v, Qz L LL u

U <UO U.. <

~~~~~~~~~~~~~~~~~~~UA

E I o

I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

< , , .,, F

o .,uO >W- LLJ P

V~~~t'-t 1n 1w1 W

~ < W

ou ,ouu F-0

~~~~~~~~o·<) O fz z

0 - u< u uu Lu

o 505 cE

C, w < (z- z j -J

w o

Nw a

~~ ̀Z ~~~~qrr ~

TM 9-28033-34


c. The magazine release plunger and spring are mounted on theleft side of the stock in the magazine release plunger escutcheon.

d. The barrel band fits over the barrel and into a slot provided inthe front of the stock. The barrel band screw goes through the sideof the stock and barrel band and screws into the barrel band screwbushing in the stock, securing the front end of the barrel to the stock.

e. The forearm adjustment base is mounted in a recess in the lowerfront portion of the stock and is secured in place with two wood screws.Six tapped holes are provided in the base for adjustment of hand-hold with relation to the sling. The forearm adjustment swivel bowassembly is attached to the forearm adjustment base by means of ascrew. .

f. The stock swivel bow assembly is mounted in a recess in therear of the stock and secured by two wood screws.

g. The butt plate is attached to the rear of the stock by means oftwo screws.

h. The guard is attached to the stock by two wood screws and thestock stud screw which passes through the stock and threads into thestud to hold the bhrrel and receiver in the stock at the rear. It hasopenings for the magazine assembly and is formed to act as a guardfor the trigger.

34. FUNCTIONING (fig. 65).

a. When the breech bolt handle is raised from the locking notchin the receiver, a cam surface formed in the rear position of thebreech bolt cocking sleeve engages a lug on the firing pin and forcesit to the rear. Rotation of the firing pin and breech bolt with thehandle is prevented by the ejector which is secured in the bottom ofthe receiver well and engages the flattened portion of the breech bolt.

b. The sear is kept in contact with the firing pin by the triggerspring. When the firing pin is forced to therear by the raising ofthe handle, the sear is pushed up to catch behind the sear lug of thefiring pin.

c. As the bolt is further retracted, the two extractors which holdthe cartridge against the face of the bolt pull the case from the firingchamber of the barrel. Just before the end of the retraction, thecartridge case strikes the ejector lug. As the bolt is further retracted,the cartridge case rim is forced from under the claw of the leftextractor, is pivoted to the right around the right extractor hook, andthrown out of the receiver upward and to the right.

d. After the bolt and cartridge case have passed the magazineduring retraction, the magazine spring and follower raises a cartridgepartially out of the magazine where the rim is retained between the

82

TM 9-28034


lips formed on the walls and the cartridge is held in an inclined posi-tion with the front of the bullet extending up and out of the magazine.

e. When the bolt is pushed forward to its closed position, the lugon the bottom of the bolt head pushes the cartridge forward untilthe rim is released at the end of the magazine lips and forced upunder pressure of the magazine spring into the recess in the face ofthe bolt and under the extractors. As the bolt continues to moveforward, the cartridge is seated in the chamber of the barrel and thesear is engaged in the sear lug on the firing pin. Turning the handledown locks the bolt with the firing pin cocked in the firing position.

f. When the trigger is pulled, the sear is disengaged from the firingpin sear lug. The firing pin spring (mainspring) then drives thestriker end of the firing pin against the cartridge.

83

TM 9-28035-37


CHAPTER 3

OPERATION

35. LOADING THE MAGAZINE.a. The magazines have a capacity of five cartridges, and are loaded

by depressing- the magazine follower and inserting one cartridge ata time. With its rim toward the back, the rim of the cartridge ispressed down into the slots on each side of the magazine and thecartridge then pushed back under the lips to the back of the tube(fig. 80). The insertion of each succeeding cartridge then pushesthe first ones down toward the bottom of the magazine.

36. LOADING THE RIFLE.a. The loaded magazine is inserted into the rifle through the

magazine opening in the bottom of the receiver just forward of thetrigger guard (fig. 81) and pushed upward until locked in place. Tofully load the rifle, the bolt should be drawn entirely to the rear andthen closed and locked. This action cocks the rifle and pushes thetop cartridge from the magazine into the chamber. The safetyshould be placed at "safe" before loading the rifle.

NOTE A: An extra cartridge, making a total of six, can be usedby opening the bolt, placing a cartridge fully in the chamber, andclosing the bolt before inserting the loaded magazine. The rifle iscompletely cocked when the bolt is returned to' the closed andlocked position.

NOTE B: The bolts of the U.S. and Winchester rifles cannot beunlocked nor retracted with the safety in the "safe" position. There-fore, the safety lock of the U.S. rifles should-be placed in the vertical(center) position, and .the safety of the Winchester rifle in the "fire"position when placing a cartridge in the chamber by hand or loadinga cartridge from the magazine into the'chamber. The safeties shouldbe placed at the "safe" position immediately after the rifle is thusfully loaded. The trigger should not be touched while loading orshifting the safety.

37. SETTING THE SAFETY.a. The safety locks of the U.S. Rifles M1 and M2 are operated

by turning the thumbpiece to the extreme left position when readyto fire (fig. 82). When the thumbpiece is in the center or verticalposition, the trigger 'cannot be pulled, but the bolt handle can beraised and retracted. When the thumbpiece is in the "safe" positionat the extreme right, the trigger cannot be pulled and the bolt handlecannot be raised.

84

TM 9-28037

OPERATION

RA PD 81847

Figure 80 - Loading the Magazine

RA PD 81846

Figure 81 - Inserting Magazine in the Rifle

85

TM 9-28037-39


READY POSITION

POSITION

RA PD 81961Figure 82 - Safety Lock of U.S. Rifle, Cal. .22, M2 - Showing

Ready, Neutral (Center), and Safe (Safety) Positions

b. In the Remington Rifle, cal..22, Model 513T, the safety on theright of the receiver is operated by pushing the safety lever forward(red dot showing) for "firing" position, or to the rear for "safe"position.

c. The safety of the Stevens Rifle, cal..22, Model 416-2, is oper-ated by pushing the thumbpiece on the right of the receiver to therear in order to fire, and fully forward for "safe" position.

d. The safety lock of the Winchester Rifle, cal. .22, Model 75, isoperated by pushing the safety lever, on the right side of the receiver,forward for firing and fully to the rear for "safe" position, until theword "SAFE" is exposed.

38. FIRING AND RECOCKING.a. The rifles are fired by setting the safety lock at ready, and

drawing the finger piece of the trigger to the rear. The rifles fireonce when the trigger is squeezed.

b. The rifles are recocked, the fired cartridge ejected, and a newone pushed into the chamber by lifting the bolt handle, drawing itfully to the rear, and returning it to closed and locked position.

39. REAR SIGHT SETTING.a. Rear Sights.(1) GENERAL. The rear sights of the rifles covered in this manual

86

TM 9-28039

OPERATION

are provided with elevating and windage screws for shifting theaperture (or like part) for elevation and windage settings. Thesescrews are furnished with knobs which, when turned, are retainedin position by click springs or retaining balls seating in notches inthe face of the knobs. The seating of the click spring or balls inthe notches can be plainly heard or felt as the knobs are turned.The relation between the pitch of the screw threads and the notchesin the knobs is such that each notch corresponds to a shift of theaperture vertically or laterally measured in minutes of angle. Eachminute of angle corresponds to a shift in point of impact of the bulleton the target in inches, varying with the range or distance from thetarget. These fractional shifts of the knobs are called "clicks." Inthe rifles covered herein, each click corresponds to either a 1/4- or1/2-minute change in angle of sight; such changes correspond to a1/4- or 1/2-inch shift of the point of impact of the bullet on the targetat 100 yards. This shift varies with the distance; as the range isdoubled or halved the amount of shift of point of impact is doubledor halved. Thus in a sight having 1/4-minute click graduations, thepoint of impact will be shifted one-sixteenth inch at 25 yards, one-eighth inch at 50 yards, one-fourth inch at 100 yards, one-half inch at200 yards, etc. Likewise in a sight having 1/2-minute click gradua-tions, the point of impact will be shifted one-eighth inch at 25 yards,one-fourth inch at 50 yards, one-half inch at 100 yards, etc., in thesame ratio. Turning the elevating screw knob shifts the point ofimpact vertically, and turning the windage screw knob shifts thepoint of impact laterally. The sights are usually adjusted at manu-facture but to make sure they are correct they should be checked onthe range.

(2) U.S. RIFLES, CAL. .22, M1 AND M2. These rifles are fur-nished with the Lyman 48C receiver sight with 1/2-minute clicks.The elevating scale of this sight is marked for ranges of 25, 50, 75,100, and 125 yards. Each yardage division is subdivided into 5parts, each subdivision representing 5 yards of range. The elevatingscrew knob is marked in 10 divisions, each division corresponds to1 click which is plainly heard or felt as the knob is turned. Eachdivision or click represents one-half minute of angle, and will shiftthe point of impact of the bullet as explained in step (1), above.The windage scale is graduated in minutes of angle, the central posi-tion only being marked by a "O." The windage screw knob alsohas 10 clicks to a full revolution but the divisions are not marked onthe knob. Both the (elevating scale) pointer screwed to the sightbase, and the windage scale screwed to the top of the elevating slideare adjustable for initial setting of the sight.

NOTE: One click of elevating or windage knob represents a shiftof the point of bullet impact of one-eighth inch at 25 yards.

(3) REMINGTON RIFLE, CAL. .22, MODEL 513T. This rifle is fur-

87

TM 9-28039


nished with the' Redfield 75RT rear sight with 1/4-minute clicks. Theelevating slide is graduated and marked in minutes of angle. Eachdivision represents 3 minutes, and every 5 divisions are marked torepresent 15, 30, 45, and 60 minutes of angle respectively. Theright side of the slide is blank and can be marked for ranges in yardswhen determined. The elevating screw knob has 12 click divisions,each of which corresponds to one-fourth minute of angle. Thus, afull revolution of the knob corresponds to 3 minutes of angle or 1division on the slide. The windage index plate likewise is dividedinto 3-minute divisions with a "0" stamped at the central point. Thewindage screw knob corresponds in divisions and clicks to the elevat-ing screw. The windage index plate and elevating (slide) plate areadjustable for setting when the zero of the rifle is determined.

NOTE: One click of elevating or' windage knob represents a shiftof one-sixteenth inch at 25 yards.

(4) STEVENS RIFLE, CAL. .22, MODEL 416-2. This rifle is fur-nished with a Stevens (No. 106) rear sight, with 1/2-minute clicks.This sight differs somewhat from other sights covered herein, in thatthe elevating slide moves vertically in the windage slide, rather thanthe windage slide moving laterally in the elevating slide. -The faceof the windage slide is marked in 10 divisions, each of which repre-sents 6 minutes of angle. There is' no alinement mark on the elevat-ing slide, nor on the base to aline the windage slide. Such marksshould be made when the sight has been adjusted for minimum rangeand zero windage. There are no marks on the elevating or windagescrew knobs. Each knob is divided into 6 click divisions, each divi-sion representing one-half minute of angle. Two full revolutions ofthe knobs or 12 clicks, represent 6 minutes of angle or, in the caseof the elevating knob, 1 division on the elevating scale on the windageslide.

NOTE: One click of elevating or windage knob represents a shiftof one-eighth inch at 25 yards.

(5) WINCHESTER RIFLE, CAL. .22, MODEL 75. This rifle is fur-nished with a Lyman 57E rear sight with 1/4-minute clicks. The ele-vating scale is attached to the elevating slide and marked for 50, 100,150, and 200 yards. The windage scale is attached to the top of the

'elevating slide and marked in minutes of angle. Both scales areadjustable. The elevating screw knob has 12 divisions, each ofwhich corresponds to one-fourth minute of angle. Thus a full revo-lution of the knob represents a change of 3 minutes of angle. Thewindage screw knob is similarly divided into 12 clicks but is not somarked.

NOTE: One click of elevating or windage knob represents a shiftof one-eighth inch at 50 yards.

b. Zeroing the Sights.(1) The sights of each rifle should be checked to ascertain the

88

TM 9-28039

OPERATION

basic or "zero" setting for the particular rifle. For accuracy, suchzero settings are best done at short range. The approximate zerosetting of the sights is explained below. When such setting is deter-mined and noted, the riflle should be checked at various yardagesand any variations from computed settings noted. In sighting-inthese rifles, a large target should be used with a cross in the center,and the rifle fired from a rest. Such a target will register the firstfew shots which may be' out of line, and clearly indicate the point ofimpact vertically or laterally from center. All sighting-in should bedone on a safe range and on a day without any wind. As short rangesare preferable for such zero settings, 25 yards is taken, which means25 yards from the muzzle of the rifle to the target. As the minimumsetting of the sight on the Winchester rifle is 50 yards, this distance istaken as minimum yardage for this rifle. As the point of impact ofeach bullet will vary somewhat, the center of the group should beconsidered.

(2) As the sights of the four rifles covered herein are basicallyalike, the method of zeroing the sights as explained below will applygenerally. However, as the design and nomenclature of like partsvary somewhat, instructions should be considered as applying to likeparts of each sight. To set the sights for minimum range and zerowindage, take position 25 yards from the target (50 yd for Win-chester) and proceed as follows:

(a) Screw the elevating slide, or like part, down as far as it willgo by turning the elevating knob. If yardage is marked on the scale,the slide may be set at proper yardage for a test shot.

(b) Set the aperture, or like part, as near the center (bore line) aspossible by turning the windage knob.

(c) Fire a few shots and correct for windage to center the point ofbullet impact laterally, by turning the windage knob in the properdirection. Moving the aperture, or like part, to the right will shiftthe point of bullet impact on the target to the right, and vice versa.When the point of impact is centered laterally set the windage scaleplate, or like part, so that the "0" alines with the indicating line onthe aperture. In the case of the Stevens rifle, mark the windage slideand sight base to indicate the central position.

(d) Correct for elevation in like manner to center the point ofbullet impact vertically, by turning the elevating knob in the properdirection. Moving the elevating slide, or like part, up, raises the pointof bullet impact on the target, and vice versa. When point of bulletimpact is centered vertically, mark the position of the elevating slidewith regard to the pointer or indicating line, according to the rifle inquestion, as follows:

1. U.S. Rifles Ml and M2. Set pointer to 25-yard mark on slide.2. Remington Model 513T. Set pointer of the plate at "0," and

mark 25 on the slide opposite "O," to indicate yardage.

89

TM 9-28039


3. Stevens Model 416-2. Mark elevating slide to correspond with"0" stamped on the scale on the windage slide.

4. Winchester Model 75. Set elevation scale so that 50-yard markis opposite the "0" indicating mark on sight base.

(e) Check sight settings at various yardages and note any varia-tions from computed settings.

NOTE: A range table for the U.S. rifles, which have 1/2-minuteclicks is given in paragraph 73 f.

90

TM 9-28040-41

CHAPTER 4

MALFUNCTIONS AND CORRECTIONS

40. GENERAL.

a. A malfunction is an improper or incomplete action of some partof the rifle or ammunition, which prevents the proper functioning ofthe rifle as a unit. A malfunction may be due to a broken, damagedor faulty part, improper assembly or cleaning, or faulty ammunition.Examples of a malfunction are: failure to extract a fired cartridgecase, or failure of the bolt to close and lock properly.

CAUTION: In case of a misfire, the bolt should not be unlockedfor about i5 seconds as failure to fire may be due to a hangfire. Ahangfire is caused by delayed ignition of the powder in the cartridge.

b. Repair by the using arms, is limited to cleaning, removal ofburs, and such minor repairs or adjustments as lie within its scopewith the tools and spare parts provided. If a malfunction cannot bereadily corrected by such means, the rifle should be turned over to aresponsible ordnance unit for inspection and repair. No attemptshould be made by the using arms to correct head space. Triggerpull should not be altered except by such adjustments as are pro-vided, as in the case of the trigger adjusting mechanisms of the Rem-ington and Winchester rifles. Each adjustment should only be madeunder the supervision of an officer or the chief mechanic. Sear ortrigger should never be stoned except by experienced ordance per-sonnel.

c. The following malfunctions and corrections apply, in general toall caliber .22 rifles covered in this manual.

41. MALFUNCTIONS AND CORRECTIONS.

a. Failure To-Fire.Cause Correction

Magazine and chamber empty. Load.Broken firing pin. Replace.Failure to put bolt handle fully Recock.

down.

b. Misfire.Defective cartridge.Weak mainspring. Replace.Heavy grease on firing pin or in Clean.

bolt.Worn or broken firing pin. Replace.Firing pin binding in bolt head. Replace.Firing pin rod binding in bolt Replace or repair.

head.Bolt not completely locked. Reload and lock.

91

TM 9-28041


c. Hangfire.Cause Correction

Defective ammunition.Light blow of firing pin. Replace mainspring.

d. Blowback.Ruptured cartridge.

e. Split Case.Defective case.

f. Stretched Case.Excessive head space. Repair.

g. Ruptured Case.Defective metal Qr excessive Repair.

head space.h. Failure To Extract.

Faulty extractor. Replace.Dirty or rough chamber. Clean or repair.Defective case.

i. Failure To Eject.Bur on ejector tip. Remove bur.Loose extractor due to defective Replace defective part.

extractor, spring, or pin.Extractor dropping cartridge Replace extractor.

upon ejector.j. Failure To Feed From Magazine.

Deformed magazine lips. Replace magazine.Weak follower spring. Replace magazine.Tight extractor. Replace or repair.Interference of ejector. Replace.

k. Failure To Feed Into Chamber.Damaged cartridge.Magazine not seated properly. Seat magazine firmly. Replace

magazine retaining spring ifnecessary.

Magazine retaining notch worn Replace magazine.allowing misplacement.

Dented magazine. Replace magazine.Deformed magazine lips. Replace magazine.

92

TM 9-28042-43

CHAPTER 5

CARE AND PRESERVATION

42. GENERAL.a. The following instructions for the care and preservation apply

to all caliber .22 rifles covered in this manual.b. Proper functioning and accuracy depend largely upon care,

cleaning, and lubrication. The rifle should be checked daily forcleanliness and lubrication.

e. It is a fact that a highly polished steel surface rusts much lesseasily than one which is roughened; also, that a rifle bore which ispitted fouls much more rapidly than one which is smooth. Everyeffort therefore should be made to prevent the formation of pitswhich are merely enlarged rust spots and which not only affect theaccuracy of the rifle but increase the labor of cleaning. When thebore of a rifle becomes badly pitted, the weapon will shoot inac-curately and lead excessively. No amount of cleaning .will restoresuch a. bore. The rifle should be turned in to an ordnance establish-ment to have a new barrel fitted. Such a condition of the bore isalways caused by neglect.

d. In cleaning the rifle, great care should be exercised not toinjure the chamber as this is a most critical part of the rifle barrel.Particularly is this true of the caliber .22. If the chamber is burredor scratched, it will not only affect seating and extraction but it prob-ably will cause the bullet to be so deformed that all semblance ofaccuracy is lost. Always let the cleaning rod turn with the groovesof the rifling when forcing it through the barrel.

43. CLEANING WHEN NO FIRING IS DONE.a. General. During periods when the rifle is not used for firing,

it should be inspected daily. The weapon will be wiped thoroughlyclean and the film of oil on all metal surfaces renewed every 5 days,unless there is evidence of rusting which will necessitate more frequentapplication.

b. Stock and Other Wood Parts. Wipe off the exterior of therifle with a dry cloth to remove dampness, dirt, and perspiration.About once a month, apply OIL, linseed, raw, to the wood with acloth. The surplus oil should b5e wiped off and the stock polishedwith a clean dry cloth or the palm of the hand. Care should beexerted to see that the linseed oil is kept away from the operatingparts of the rifle as it will harden and prevent functioning. Linseedoil should not be used on varnished stocks.

c. Metal Surfaces. To clean screwheads and crevices, use a smallcleaning brush or a stick. To clean metal surfaces, including the bolt

93

TM 9-28043-44


mechanism and magazines, wipe with a dry cloth to remove moisture,perspiration, and dirt, then wipe with a wiping cloth moistened withOIL, lubricating, preservative, special. This protective film of oilshould be maintained at all times. To clean the outer surfaces of therifle, wipe off dirt with a slightly oiled cloth, wipe dry with a softclean one, and then oil lightly as above.

d. Bore. The bore of the rifle will always be cleaned by insertinga cleaning rod into the breech end to avoid possible injury to therifling at the muzzle. The bolt must be removed for this purpose.The Cleaning Rod M1 should be used. To clean the bore, assemblea patch, cut (canton flannel) to the cleaning rod and insert the rodinto the bore at the breech end. Move the cleaning rod and patchforward and backward several times through the bore and replacewith a clean patch. Be sure the patch goes all the way through thebore before the direction is reversed. This will prevent the patchand rod from becoming stuck in the bore. After the bore has beenthoroughly cleaned, saturate a patch with OIL, lubricating, preserva-tive, special, and push it through the bore to apply a light film ofoil. When issue patches are not available, patches should be cutto 3/4 to 7/8 inch square to permit their passage through the borewithout bending the cleaning rod.

NOTE: The chamber must be cleaned as thoroughly as the bore.A rough chamber may cause cartridges to stick.

e. After cleaning and protecting the rifle as described above, placeit in the rifle rack without any covering and without a plug in themuzzle. Muzzle covers, gun covers, rack covers, and plugs must notbe used. They cause sweating and promote rust. When barracksare being swept, rifle racks should be covered to protect the rifles fromdust. These covers must be removed immediately after the roomshave been swept, and dust has settled.

f. Oiling. Excessive oiling is a waste of oil and results in a col-lection of dirt which causes friction and wear. In weather belowfreezing, care should be taken to use oil very sparingly, after carefulcleaning of all parts. For care of the rifle in extremely cold weather,refer to chapter II.

g. Rust-preventive. For use of rust-preventives refer to para-graph 80.

h. Gun Sling M1907. The gun sling may be washed with waterand castile soap. When dry, OIL, neat's-foot, may be applied witha piece of cloth or sponge. Wipe off excess oil and rub well intothe leather. Do not use an excessive amount of oil as it will take along time to dry and may mark clothing.

44. CLEANING PREPARATORY TO FIRING.a. The following procedure will be observed to assure efficient

functioning of the rifle:94

TM 9-28044-46


(1) Disassemble main groups (chap. 6).(2) Thoroughly clean the bore and chamber (par. 42).(3) Thoroughly clean and lightly oil all metal parts, especially the

bolt mechanism parts. Use OIL, lubricating, preservative, special.(4) Be sure the following parts are well lubricated:(a) Bolt lugs (locking and operating).(b) Bolt guides.(c) Locking cam on bolt.(5) Reassemble the main groups (chap. 6).(6) Remove all dust with a dry, clean wiping cloth and then rub

the rifle with a slightly oiled cloth or patch.(7) Wipe the bore and chamber clean with a clean, dry, patch.

45. CLEANING DURING FIRING.

a. Clean the chamber at reasonable intervals during extendedfiring to facilitate extraction of cartridge cases and to prevent pittingand rusting.

b. In general, it should not be necessary to disassemble the gunduring firing for cleaning. However, if the mechanism becomes verydirty and functions sluggishly, disassemble the rifle into its groupsand clean as instructed in paragraph 44.

46. CLEANING AFTER FIRING.a. Rifles should' be cleaned not later than the evening of the day

on which they are fired, preferably immediately after cessation offiring, and should be inspected and cleaned every day for at least3 days following cessation of firing. Complete cleaning should bedone with the groups disassembled.

b. Bore and Chamber.(1) Proper care of the bore consists in removing fouling resulting

from firing to obtain a chemically clean surface and coating this sur-face with a film of oil to prevent rusting. Fouling which results fromfiring is caused by either products of combustion of the powder andprimer composition, or small flakes of lead that occasionally appearin the bore. The former is sometimes acid in its reaction and there-fore highly corrosive. If of this character, it will induce rust and mustbe removed. Even with noncorrosive ammunition, it is best to removefouling. Lead flakes in themselves are inactive, but they may coverpowder fouling and unless removed, may prevent the action of clean-ing agents. The flakes can be readily and completely pushed out ofthe bore by using the method described in step (3), below. Shouldthis procedure not suffice, dip the brass wire brush in the bore cleaningsolution and, using the cleaning rod, carefully push the brush com-pletely through the bore about five times.

NOTE: If the brush is threaded to the cleaning rod, pass rod

95

TM 9-28046-47


through bore, then attach brush and pull through. This procedurewill prevent brush from bending during insertion.

(2) The bore should be thoroughly cleaned with CLEANER, riflebore. This cleaner is a combination solvent and preservative issuedfor use by troops in cleaning small arms. When CLEANER, riflebore, is not available, the bore should be cleaned with hot water andsoap solution or (one-fourth lb of castile or issue soap per gal of water),or SODA ASH, and warm water solution (11/2 spoonfuls per pt ofwater), hot water alone, or in the absence of these, cold water. Aftercleaning with SODA ASH, or soap and water solution, the bore andchamber should be thoroughly rinsed with clean water. They shouldthen be thoroughly dried and oiled.' To avoid possible injury tothe rifling at the muzzle, rifle bores will be cleaned from the chamberend, the bolt being removed for this purpose.

(3) To use CLEANER, rifle bore, insert a clean patch in the slotin the cleaning rod and saturate it with cleaner. Push patch backand forth through the bore several times, taking care that all pointsof the bore are cleaned from muzzle to chamber. Be sure the patchgoes all the way through the bore before the direction is reversed.This will prevent the patch and rod from becoming stuck in the bore.While the bore is wet, a clean brush should be pulled through threeor four times to remove any hardened particles in the bore. Runseveral patches saturated with cleaner entirely through the bore,removing them from the muzzle end, then wipe the cleaning roddry, and using dry clean patches, thoroughly dry the bore. Cleanthe chamber in the same general manner using a patch wrappedaround a stick if necessary. To use hot soap and water solution,SODA ASH, and water solution, or water alone, follow the sameprocedure. Care should be taken to avoid wetting the stock orother parts of the rifle. Examine the bore and chamber carefullyfor cleanliness. If they are not free from all residue, repeat thecleaning process. Rinse the bore with clean water and dry thoroughlybefore oiling.

(4) Oil the bore and chamber thoroughly, using the cleaning rodand clean, dry patches saturated with OIL, lubricating, preservative,special.

47. CLEANING RIFLES RECEIVED FROM STORAGE.a. Rifles received from storage may be completely covered with

COMPOUND, rust-preventive, light. Use SOLVENT, dry-cleaning,to remove all traces of the compound or oil, taking particular carethat all recesses in which springs or plungers operate are cleanedthoroughly. The solvent is generally applied with cloth swabs tolarge parts and as a bath for small parts.

b. After using the solvent, make sure it is completely removed fromall parts by wiping thoroughly, allowing the parts to dry, and then

96

TM 9-28047-48


again wiping with a clean, dry cloth. The bore and chamber of thebarrel must be thoroughly cleaned.

NOTE: To avoid leaving finger marks, which are ordinarily acidand induce corrosion, gloves should be worn by persons handling partsafter such cleaning. SOLVENT, dry-cleaning, will attack and dis-color rubber.

c. All surfaces having been thoroughly cleaned and dried, theyshould then be protected immediately with a thin film of oil appliedwith a cloth, as cleaning solvent removes every trace of oil or greaseand metal is susceptible to quick rusting.

d. The stock should be wiped off with a rag which has been dippedin linseed oil. (Linseed oil should not be used on varnished stocks.)

CAUTION: Failure to clean the firing pin and main spring, andthe recesses in the bolt in which they operate, may result in gun failureat normal temperatures, and will certainly result in serious malfunc-tions if the rifles are used in low temperatures, as rust-preventive com-pound and other foreign matter will cause the oil to congeal or froston the mechanism.

48. LUBRICATION.a. Immediately after cleaning, all metallic bearing and contact

surfaces will be thoroughly lubricated with OIL, lubricating, pre-servative, special. A protective film of oil should be maintained atall times. Lubrication should be applied lightly, as too much oil col-lects grit and foreign matter, which will cause undue wear andpossible malfunctioning of the rifle,

b. Any part that may appear hard to move, generally can be freedby use of a little oil. The best method of applying oil is rubbing witha piece of cotton cloth upon which a few drops of oil have beenplaced, thereby avoiding the use of an unnecessary amount. Thismethod will also serve for cams and bearings, which should always bekept oiled. Particularly, each day before the rifle is fired, the rearsurface of the bolt handle locking lug, the surface of the receivesagainst which it locks, and the sleeve bearing between bolt head andbolt handle should be wiped dry and clean, and then wiped with anoily cloth. If these surfaces are not kept clean and lubricated at alltimes, it will cause frictional wear which, in time, will result in increaseof head space to a point detrimental to the accuracy and safety of theweapon. When the rifle is used in a dusty or sandy locality, lubrica-tion should be kept at a minimum and parts cleaned frequently, as oilcauses dust to stick, forming an abrasive paste which is conducive toundue wear. The interior bore of the bolt handle and bolt head andthe firing mechanism assembly, however, should never have an excessof oil on them, as this would interfere with perfect igiition, and bedetrimental to the best accuracy. These parts should be wiped clean

97

TM 9-28048


and dry at frequent intervals, and should then be lightly wiped witha very slightly oiled cloth so that they will have just a slight "shine"of oil. As the bore of the rifle, when properly cared for, will success-fully withstand firing of more than 100,000 rounds of ammunitionwithout impairment of accuracy, proper care and lubrication of thebreech mechanism are very important in order that there may be nowear from friction during the life of the barrel.

NOTE: The procedure outlined in subparagraph b, above appliesspecifically to the U.S. rifles, but also applies in general to like partsof the commercial rifles.

98

TM 9-28049-50

CHAPTER 6

DISASSEMBLY AND ASSEMBLY

49. GENERAL.

a. Disassembly and assembly by the using arms are confined toremoval and installation of the major groups for the purpose of re-placement or cleaning. These five groups are the bolt group orassembly, magazine assembly, barrel and receiver group, rear sightgroup or assembly, and stock group (par. 6 c).

b. Removed groups should be placed on a clean flat surface, prefer-ably wood, to prevent abrasion of parts. Care should be taken toavoid loss of pins, screws, and other small parts.

NOTE: Full disassembly and assembly is limited to ordnancepersonnel, and covered in TM 9-1280.

50. U.S. RIFLES, CAL. .22, M1 AND M2 (figs. 83 and 84).a. Bolt With Firing Mechanism Assembly.(1) REMOVAL. Turn the ejector stop downward to its lower notch

or to an almost horizontal position. Raise the bolt handle and drawthe bolt back and out of the receiver (figs. 85 and 86).

NOTE: If the bolt is to be disassembled, the rifle should be cockedand the safety lock turned to its vertical position before removal.

(2) INSTALLATION. With the ejector stop in the middle notch orhorizontal position, push the bolt with the locking lug up into thereceiver. Turn the ejector stop up into its seat on the receiver.Push the bolt handle down (figs. 85 and 86).

CAUTION: The rifle is now cocked and ready for firing.(3) DISASSEMBLY OF M2 BOLT. The bolt should not be disas-

sembled except for replacement of firing pin assembly or extractorwhich are furnished as organizational spare parts. To disassembleproceed as follows:

(a) Hold bolt mechanism in left hand; press bolt sleeve lock inwith thumb of right hand; turn bolt sleeve to left sufficiently to releaselatch lug on bolt head from locking lug on bolt handle; remove bolthead. Hold bolt head in left hand, pressing extractor against a bench,and with right hand push point of a small screwdriver under hook ofextractor; force downward and up and remove extractor from bolthead.

(b) Remove firing mechanism assembly from bolt handle by un-screwing to left; grasp firing mechanism assembly in left hand, firingpin point down; turn safety lock into center position and lock cock-ing piece; with thumb and forefinger on bolt sleeve and fingersholding mainspring, press firing pin point against some object, nothard enough to injure it, and unscrew firing pin nut, allowing main-spring to release slowly. The bolt sleeve and safety lock assembly,cocking piece, mainspring, and firing pin can then be separated.

99

TM 9-28050


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RA PD 81848

Figure 85 - Removing Bolt From U.S. Rifle, Cal. .22, MI

RA PD 81866

Figure 86 - Removing Bolt From U.S. Rifle, Cal. .22, M2

(4) ASSEMBLY OF M2 BOLT.(a) Assemble bolt sleeve and cocking piece with safety lock in

center position; then assemble mainspring and bolt sleeve with cock-ing piece on firing pin; compress mainspring and screw firing pin nuton end.of firing pin.

(b) Screw firing mechanism assembly into bolt handle until boltsleeve lock engages its slot in bolt handle. Press firing pin pointagainst some object which forces cocking piece backward and allowssafety lock to be turned to vertical position. Press bolt sleeve lockin and turn bolt sleeve to left about one-quarter turn; insert bolthandle into bolt head as far as it will go; then turn bolt sleeve toright until bolt sleeve lock engages its slot in bolt handle.

(c) Hold rear end of bolt mechanism in left hand with extractorslot in bolt head up; place extractor in slot; grasp front end of boltmechanism with right hand, thumb on extractor; placeend of extractor

102

TM 9-28050


MAGAZINE,ASSEMBLY

D28313

SPRING, RETAINING,MAGAZINE-D28315

RA PD 81868

Figure 87 - Removing Magazine From U.S. Rifle, Cal..22, M2

against some firm object; depress extractor with thumb of right handand force extractor into place in bolt head.

h. Magazine Assembhl:(1) REMOVAL. With the rifle supported in the right hand, press

in on the thumbpiece of the magazine retaining spring with the rightforefinger. Pull out the magazine with the left hand (fig. 87).

(2) INSTALLATION. Holding the rounded portion of the magazineto the front of the rifle, slide it into its recess until it seats into positionwith a click.

e. Rear Sight Group.(1) REMOVAL. Unscrew the rear sight lock bolt as far as possible,

press it in, and at the same time, lift the rear sight slide up sufficientlyto expose the short rear sight mounting screw underneath the left sideof the slide (fig. 88). Remove this short rear sight mounting screw(fig. 89). Remove the other mounting screw and remove the sight.

(2) INSTALLATION. Place the rear sight base in position on thereceiver with the rear sight slide removed to expose the hole for theshort rear sight mounting screw. Install the short and long rearsight mounting screws (fig. 89). Press in on the rear sight lock boltand push the rear sight slide down into position.

(3) INSTALLATION OF ANTIAIRCRAFT REAR SIGHT APERTURE.

When the caliber .22 rifle is used for antiaircraft training, it is neces-

103

TM 9-280,50


RA PD 81195

Figure 88 - Removing Rear Sight Elevating Slide FromU.S. Rifle, Cal. .22, M2

sary that the rear sight aperture be removed and the antiaircraft rearsight aperture (fig. 90) be substituted in its place.

(a) To remove the rear sight aperture, unscrew the rear sight lockbolt as far as possible, press it in, and at the same time lift out therear sight slide. With a jeweler's screwdriver, unscrew the rear sightwindage screw .knob set screw part way (fig. 91). This allows therear sight windage screw knob to be removed. Lift off the rear sightwindage click spring. Unscrew the two cap screws and lift off the rearsight windage cap. Slide out the rear sight aperture and windagescrew. Unscrew the rear sight windage screw from the rear sightaperture.

(b) To install the antiaircraft rear sight aperture, place the anti-aircraft rear sight aperture on the rear sight slide and screw the rearsight windagescrew all the way in. Put the rear sight windage cap inplace, with the flat side down. Screw in the two rear sight windagecap screws. Place the rear sight windage click spring over the headsof the two rear sight windage cap screws, having the notch on the

104

TM 9-28050


SCREW, REAR SIGHT I SCREW. REAR SIGHTMOUNTING, SHORT MOUNTING, LONG

_e ~L {KNOB, REAR SIGHTILOCK BOLT

RA PD 22723

Figure 89 - Removing Rear Sight From U.S. Rifle, Cal. .22, M2

BACK VIEW SIDE VIEWRA PD 81988

Figure 90 - Antiaircraft Rear Sight Aperture for U.S. Rifle,Cal. .22, MI and M2

lower side. Note the position of the hole in the end of the rear sightwindage screw, and place the rear sight windage screw knob on therear sight windage screw so that the rear sight windage screw knobset screw will be in line with this hole. Press in on the rear sightwindage screw knob and screw in the rear sight windage screw knobset screw (fig. 91). There should be no movement of the rear sightwindage screw knob on the rear sight windage screw. Press in onthe rear sight lock bolt knob' and push the rear sight slide into itsplace in the rear sight base. Screw up the rear sight lock bolt knob.

105

TM 9-28050


SCALE. WINDAGE,REAR SIGHT

APERTURE,REARSIGHT

KNOB, REAR SIGHTWINDAGE SCREW i l_ .

SPRING,REAR SIGHT WINDAGE - .SCREW KNOB CLICK

KNOB, REAR SIGHTSCREW DISK, REAR ELEVATING SCREW

WINDAGEREAR SIGHTREAR SIGHT APERTURE / SCREW ELEVATING,SLIDE, REAR SIGHT REAR SIGHT

RA PD 22730Figure 91 - Removing Rear Sight Windage Screw Knob From

Rear Sight of U.S. Rifle, Cal. .22, M2

/

BAND, LOWERB8563

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RA PD 81870

Figure 92 - Removing Lower Band From U.S. Rifle, Col. .22, M2

106

TM 9-28050


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TM 9-28050-51


d. Barrel and Receiver Group.(1) REMOVAL. Loosen the lower band screw in the lower band

swivel, spread the band apart far enough to clear the lower band pinin the stock, and slide the lower band from the stock and off thefront of the barrel (fig. 92). Remove the front and rear guard screws.Lift the barrel and receiver group from the stock (fig. 93). Thetrigger guard group may then be removed from the stock.

(2) INSTALLATION.

(a) Place the barrel and receiver group in position in the stock(fig. 93).

CAUTION: If the rear sight has not been removed, keep thestock, as well as the barrel and receiver, flat against the bench so asnot to damage the rear sight by hitting it against the bench.

(b) Place the trigger guard group in position. Insert and tightenthe front and rear guard screws. Slide the lower band over thebarrel and stock with the open end of the small "U" stamped on theband, toward the front. Place the lower band swivel between thetwo ears of the band and install the lower band screw.

51. REMINGTON RIFLE, CAL. .22, MODEL 513T (fig. 94).a. Bolt Group.(1) REMOVAL. With safety forward, raise the bolt handle and

draw the bolt back as far as it will go. Depress the trigger and pullthe bolt back and out of the receiver (fig. 95).

(2) INSTALLATION. Slide the bolt into the receiver as far as itwill go. (If bolt has become uncocked, place it in a padded vise andcock it by raising the bolt handle.) Depress the trigger until thebolt handle enters the slot in the receiver (fig. 95). Release thetrigger and slide the bolt to its extreme forward position. Push thebolt handle down;

CAUTION: Be sure to release the trigger before sliding the boltto its extreme forward position since it is cocked and might fire ifpushed forward fast while the trigger is depressed.

b. Magazine Assembly.(1) REMOVAL. Press the magazine lock back towards the trigger

and pull out the magazine assembly (fig. 96).(2) INSTALLATION. Holding the convex side of the magazine

toward the rear of the rifle, slide the magazine into its recess untilit seats in its proper position.

c. Rear Sight Assembly.(1) REMOVAL. Unscrew the rear sight base mounting screw and

the sight will come away from the rear sight base mounting block(fig. 97). Remove the two screws attaching the rear sight basemounting block to the receiver, and remove the block.

108

TM 9-28051


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TM 9-28051


RA PD 81892 /

Figure 95- Removing Bolt From Remington Rifle,Cal. .22, Model 513T

MAGAZINEASSEMBLY

LOCK, MAGAZINE-107 RA PD 81865

Figure 96 - Removing Magazine From Remington Rifle,Cal. .22, Model 513T

(2) INSTALLATION. Install the rear sight base mounting blockwith its two mounting screws to the receiver. Install the rear sightassembly on the rear sight base mounting block and secure in placewith the rear sight base mounting screw (fig. 97)

d. Barrel and Receiver Group.(1) REMOVAL. Remove the take-down screw from the front end

of the magazine guide plate. Remove the barrel and receiver groupfrom the stock (fig. 98).

(2) INSTALLATION.(a) Place the barrel and receiver group in the top of the stock

(fig. 98).CAUTION:. If the rear sight has not been removed, keep the stock,

110

TM 9-28051-52


BASE,REAR SIGHT SCREW, REAR SIGHT

BASE MOUNTING RA PD 81860

Figure 97 - Removing Rear Sight From Remington Rifle,Cal. .22, Model 513T

as well as the barrel and receiver, flat against the bench so as not todamage the rear sight by hitting it against the bench.

(b) Insert the take-down screw in its proper position in the frontof the magazine guide plate and tighten.

52. STEVENS RIFLE, CAL. .22, MODEL 416-2 (fig. 99).

a. Bolt Assembly.(1) REMOVAL. With safety pushed to rear, raise the bolt handle

and draw the bolt back as far as it will go. Depress the trigger andpull the bolt back and out of the receiver (fig. 100).

(2) INSTALLATION. Slide the bolt assembly into the receiver asfar as it will go. (If the bolt has become uncocked, place it in apadded vise and cock it by raising the bolt handle.) Depress thetrigger until the bolt handle enters the'slot in the receiver (fig. 100).Release the trigger and slide the bolt to its extreme forward position.Push the bolt handle down.


h. Magazine Assembly.(1) REMOVAL. Compress the magazine retainer on the bottom

of the receiver and pull the magazine out (fig. 101).

111

TM 9-28052


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Figure 100 - Removing Bolt From Stevens Rifle,Cal. .22, Model 416-2

\

RA PD 81864

Figure 101 - Removing Magazine From Stevens Rifle,Cal. .22, Model 416-2

(2) INSTALLATION. Holding the convex portion of the magazineassembly towards the rear of the rifle, slide it into its recess until itseats and is locked in its proper position.

c. Rear Sight Group Assembly.(1) REMOVAL. Remove the two rear sight base screws and

remove the rear sight from the receiver (fig. 102).(2) INSTALLATION. Place the rear sight assembly in its proper

position on the receiver and secure in place with the two rear sightbase screws (fig. 102).

114

TM 9-28052-53


:t

BASE, REAR SIGHT

RA PD 81867

Figure 102 - Removing Rear Sight From Stevens Rifle,Col. .22, Model 416-2

d. Barrel and Receiver Group.(1) REMOVAL. Remove the barrel screw in the front swivel plate,

and the magazine retainer post screw from center of guard. Thebarrel and receiver assembly can now be removed from the stock(fig. 103).

(2) INSTALLATION.(a) Place the barrel and receiver assembly in place in the stock

(fig. 103).CAUTION: If the rear sight has not been removed, keep the stock,

as well as the barrel and receiver, flat against the bench so as not todamage the rear sight by hitting it against the bench.

(b) Insert the barrel screw in the front swivel plate and insertthe magazine retainer post screw in proper position and tighten.

53. WINCHESTER RIFLE, CAL. .22, MODEL 75 (fig. 104).a. Breech Bolt Assembly.(1) REMOVAL. With safety forward, raise the bolt handle and

draw the bolt back as far as it will go. Depress the trigger, and pullthe bolt back and out of the receiver (fig. 105).

(2) INSTALLATION. Slide the bolt into the receiver as far as itwill go. (If the bolt has become uncocked, place it in a padded vise

115

TM 9-28053

CALIBER .22 'RIFLES, ALL TYPES

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TM 9-28053


RA PD 81919

Figure 105 - Removing Bolt From Winchester Rifle,Cal. .22, Model 75

~sl,

RA PD 81918

Figure 106 - Removing Magazine From Winchester Rifle,Cal. .22, Model 75

118

TM 9-28053


RA PD 81896Figure 107 - Removing Rear Sight From Winchester Rifle,

Cal. .22, Model 75

and cock it by raising the bolt handle.) Depress the trigger untilthe bolt handle enters the slot in the receiver. Release the triggerand slide the bolt to its extreme forward position. Push the bolthandle down.


b. Magazine Assembly.(1) REMOVAL. Press in on the magazine release plunger located

on the left side of the stock and pull the magazine out (fig. 106).(2) INSTALLATION. Holding the convex side of the magazine

assembly towards the rear of the rifle, slide the magazine into itsrecess until it seats and is locked in its proper position.

c. Rear Sight Group Assembly.(1) REMOVAL. 'Unscrew the rear sight base screws holding the

rear sight assembly to the rear sight base and remove the rear sightassembly (fig. 107).

(2) INSTALLATION. Place the rear sight assembly in its properposition on the receiver and secure it in place with the two rearsight base screws (fig. 107).

119

TM 9-28053


No a

+ I I

-- 0E'

In

. l J Ou 0a~ v

' a'

a-

120

II

0

o

120

TM 9-28053


d. Barrel and Receiver Group.(1) REMOVAL. Remove the barrel band screw, located on the

side of the stock at the front swivel plate, and the stock stud screwlocated in the front guard hole. The barrel and receiver group cannow be lifted from the stock (fig. 108).

(2) INSTALLATION.(a) Place the barrel and receiver group in place in the stock

(fig. 108).CAUTION: If the rear sight has not been removed, keep the stock,

as well as the barrel and receiver, fiat against the bench so as not todamage the rear sight by hitting it against the bench.

(b) Insert and screw in the barrel band screw in the side of thestock at the front swivel plate and screw in the stock stud screw inthe front guard hole.

121

TM 9-28054-56


CHAPTER 7

INSPECTION

54. GENERAL.a. Inspection is for the purpose of 'determining the condition of the

rifle and whether repairs or adjustments are required to insure itsserviceability. Its immediate aim is trouble prevention whichincludes:

(1) Preventive maintenance.(2) Discovering evidence of improper treatment received by the

materiel before delivery into your hands.(3) Determining when replacement of parts is necessary because

of ordinary wear or defects in parts.b. Before inspection is started, the rifle should be fully unloaded,

and thoroughly cleaned to remove any fouling, dirt, rust, or otherforeign matter which might interfere with its proper functioning. Forinstructions in the care and cleaning as well as the materials to beused, refer to FM 23-10, TM 9-850, SNL K-l, and instructions con-tained in this manual.

c. Inspection of the assembled rifle consists of visual and func-tioning inspections. Checks are made on the trigger pull, rear sight,front sight, barrel and receiver group, stock group, bolt group, and themagazine group. Dummy cartridges are used to determine whetherthe rifle is functioning properly.

d. If the inspection determines that parts of assemblies are unserv-iceable, the entire assembly should be replaced. The using armsare not permitted to perform any disassembly other than removalof entire groups.

55. TOOLS FOR INSPECTION.a. The tools and equipment required for inspection are the stand-

ard accessories described in chapter 9 with the addition of weightsto determine trigger pull (par. 59).

56. BOLT GROUP.a. Pull the bolt handle up and return it to the closed position

to make sure the rifle cocks properly.b. Pull the trigger to test action and see that the mainspring is in

good condition and moves the firing pin forward properly (CAU-TION, par. 5 a).

c. Load a fired cartridge case in the magazine and insert maga-zine in the receiver. Slowly retract the bolt and then slowly push itforward to see if it picks up the case properly from the magazine.

122

TM 9-28056-59

INSPECTION

(Do not try to load fired case into chamber as it may damage thechamber.) Then retract the bolt smartly to see if ejector throwsthe fired case clear of the receiver. Failure to pick up case or ejectit indicates faulty extractions on ejector.

NOTE: This test is not a positive one as fired cartridge casesmay be slightly deformed. Testing with live ammunition is pro-hibited.

d. Check extractors for looseness, burs, or worn claws. A firedcartridge case may be slid under the extractors to test retention.

e. Check ejector for looseness, deformation, and burs.f. Inspect the bolt group for burs on all cams.g. Check the operation of the safety.h. Make sure the firing pin hole is not enlarged.i. Make sure ejector stop functions properly (U.S. rifles).NOTE: On the Ml and M2 Rifles, make sure the bolt sleeve lock

is operating normally and seats properly in its notch in the bolthandle. On the Ml, make sure that the bolt head latch functionsproperly.

57. MAGAZINE GROUP.a. Check the magazine for fit and retention in the receiver.b. Depress the magazine follower and note the smoothness of

operation and tension of the spring.c. Inspect the magazine for dents, cracks, deformed lips, and for-

eign matter.d. Check the follower for deformation, wear, and burs, and the

spring for set and deformation.

58. REAR SIGHT GROUP.a. Try the rear sight elevating and windage knobs for tension.b. Check the aperture for burs or looseness.c. Make sure the elevating and windage scales are clear and read-

able.d. Check for looseness of parts.e. Inspect all parts for damage.

59. BARREL AND RECEIVER GROUP.a. Check the front sight for looseness or damage.b. With the bolt withdrawn, inspect the receiver for wear and burs

in the ways, surfaces contacting moving parts, and cams.c. The barrel is visually inspected by pointing the barrel and re-

ceiver towards the light and examining the bore from the muzzle tothe breech. A piece of white paper placed in the breech will providea reflecting surface. If the barrel is not bent, or otherwise deformed,

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TM 9-28059-61


and the bore appears free from bulges and pits, and the lands aresharp and uniformly distinct, the barrel is serviceable. If the barrelcontains a bulge, it is not serviceable and should be scrapped. Thiscondition is indicated by a shadowy depression or dark ring in thebore. It may often be noticed through a bulge or exterior ring on thebarrel after the rifle has been disassembled. If the barrel is pitted, itshould be scrapped. This condition indicates that proper care of thebarrel has not been taken. If the bore at the muzzle appears to beenlarged, improper cleaning is indicated, due to rubbing of the clean-ing rod. Inspect the outside of the barrel for rust, dents, and burs.

d. The trigger, when pulled, should move to the rear withoutstopping or gritting. (For U.S. rifles, see paragraph 13 g.) Triggerpull of U.S. rifles must be greater than 31/2 pounds but should notexceed 5 pounds. Rifles cleaned and repaired in ordnance estab-lishments should have a minimum pull of not less than 4 pounds.Trigger pull is determined with proper weights attached to a wirehaving an L-shaped hook formed in the free end. Place the safetyin the "ready" or "fire" position and cock the rifle. Have the weightresting on the floor or ground and hook the trigger weight wire ontothe trigger so that pressure will be applied about one-fourth inch fromthe lower end of the trigger. Care should be taken to see that thewire contacts the trigger only and does not rub against the triggerguard or stock, and that the wire and the barrel are vertical andparallel, then, raise the weight from the floor as gently as possible. Ifthe 31/2-pound weight pulls the trigger (field test), or the 5-poundweight fails to pull the trigger, the rifle should be returned to ordnancepersonnel for correction.

NOTE: Trigger pull of commercial rifles should be between 4 and6 pounds. Overhauled rifles should have a minimum pull of 41/2pounds to allow for wear. Test as above.

60. STOCK GROUP.a. Inspect the stock for cracks, scratches, bruises or mutilations.b. Check for loose or bent sling, swivels, burs, or loose screws.c. Check the seating of the butt plate. Make sure there are no

loose or missing screws.d. Inspect trigger guard and floor plate or like part for loose

screws, burs, or damaged parts.

61. SLINGS.a. Inspect the sling as a unit for appearance, general condition,

flexibility, and function of hooks and sliding loops.b. Check the straps for condition of leather (M1907 Sling), weak-

ness, ripped stitches, cuts, and abrasions. Check the hook holes forwear and breaks between holes. Check for tears at the rivets, and

124

TM 9-28061

INSPECTION

wear and cracking at the loops. The leather straps should not crackwhen bent at a sharp angle.

c. Check the hooks for deformation, pinching, and burs. Checkthe rivets for looseness. Check the loops for deformation and burs.Check the sliding loops for looseness on the straps, for pinching, andburs.

d. Check the M1 (Web) Sling for cut or frayed webbing of strap,and for positive retention of hook and keeper.

125

TM 9-28062-66


CHAPTER 8

AMMUNITION FOR RIFLE, CAL. .22, ALL TYPES

62. GENERAL.a. Information in this chapter pertaining to type of cartridge

authorized for use in the RIFLE, cal. .22, all types, includes a descrip-tion of the cartridges, means of identification, care, use, and ballisticdata.

63. NOMENCLATURE.a. The cartridges described herein are listed in SNL T-1. Stand-

ard nomenclature is used in this manual whenever reference is madeto specific items of issue. Its use for all purposes of record ismandatory.

64. FIRING TABLES.a. Ballistic data are published herein in paragraph 73 and in

TM 9-1990, and will not be published separately.

65. CLASSIFICATION.a. The caliber .22 ammunition authorized for use in these rifles

may be classified as ball cartridges of the long rifle type. The car-tridges are known as rim fire cartridges because the priming composi-tion is contained in a circular recess inside the rim of the cartridgecase. Use of other than caliber .22 long rifle cartridge, issued by theOrdnance Department in these rifles, is prohibited.

66. IDENTIFICATION.a. The caliber .22 long rifle cartridges are procured by the Ord-

nance Department from several commercial manufacturers. Theyare all of the same appearance (fig. 109) but differ slightly in shapeof bullet, powder used, and ballistic qualities. The cartridge con-sists of the case, priming composition, powder charge, and bullet. Thecartridge case is made of brass, copper, or gilding metal and is of therim fire type. Cartridges of recent procurement may have steel, zinc-plated parkerized and oiled cases. The priming composition andcharge of smokeless powder may differ for each manufacturer. Am-munition purchased since 1928 contains a noncorrosive primer com-position. The bullet is made of lead.

b. Since all the cartridges for use in these rifles'are of commercialdesign, they do not have any model designation. The manufacturerof these cartridges can be determined by the following marks which

126

TM 9-28066-70


are stamped on the head of the case:Federal cartridges have an initial "F."Peters cartridges have an initial "P."Remington cartridges have an initial "U."United States Cartridge Co. cartridges have the initials "U.S."Western cartridges have the figure of a diamond.Winchester cartridges have an initial "H."

67. AMMUNITION LOT NUMBER.a. Caliber .22 ammunition of recent manufacture has the manu-

facturer's lot number stamped on the wooden packing box, providinga means of identifying and reporting ammunition which may becomedefective.

68. GRADE.a. No grade is assigned to caliber .22 ammunition. All unservice-

able ammunition will be destroyed locally. Instructions for thedestruction of ammunition are contained in TM 9-1900.

69. MARKING.a. Packing cases are marked with the manufacturer's name, and

the quantity and type of ammunition. Containers of this ammuni-tion are usually marked by the manufacturer with the caliber, typeof ammunition, type of powder, and such trade names as "Kleanbore,""Lubaloy," "Rustless," "Staynless," "Tackhole," "Filmkote," "Copper-'heads," etc. Boxes which do not have a metal liner for oversea ship-ments are stamped "NOT METAL LINED." (See paragraph 74.)

70. CARE, HANDLING, AND PRESERVATION.a. Small-arms ammunition as compared with other types is not

dangerous to handle. However, care must be observed to keep thewooden packing cases from becoming broken or damaged. All brokenboxes must be immediately repaired and careful attention should begiven that all markings are transferred to new parts of the box. Incase the box contains a metal liner, it should be air-tested and sealedprovided that equipment for this work is available.

b. Ammunition boxes should not be opened until the ammunitionis required for use. Ammunition removed from its container, partic-ularly in damp climates, is apt to corrode, thereby causing it tobecome unserviceable.

e'. Protect ammunition carefully from mud, sand, dirt, and water.It it gets wet or dirty wipe it off at once. If verdigris or light corrosionforms on cartridges, it should be wiped off. However, cartridgesshould not be polished to make them look better or brighter.

d. Use of oil or grease on cartridges other than that applied bythe manufacturer is prohibited.

e. Do not fire cartridges with loose bullets or otherwise defectiverounds.

127

TM 9-28070-72


LEAD BULLET (GREASED)

LK.984 MAX.| RA PD 4311

Figure 109 - CARTRIDGE, Ball, Cal. .22, Long Rifle

RA PD 69114

Figure 110- Erosion Caused by Firing Cal. .22 Short Cartridgesin a Barrel Chambered for a Cal. .22 Long Rifle Cartridge

f. Do not allow ammunition to be exposed to direct rays of thesun for any length of time. This is likely to affect its firing qualities.

g. Whenever cartridges are taken from original packing container,they will be tagged so that in the event ammunition is not'fired itcan later be identified and returned to its proper packing box.

71. STORAGE.a. Whenever practicable, small-arms ammunition should be stored

under cover. When necessary to leave it in the open, raise it ondunnage at least 6 inches from the ground, and cover it with a doublethickness of paulin. Suitable trenches should be dug to preventwater flowing under the pile.

72. AUTHORIZED ROUND.a. The ammunition listed below is authorized for use in the RIFLE,

cal. .22, all types. It should be noted that this nomenclature com-pletely describes the cartridge as to type, caliber, and model. Forauthorized use in training, see AR 775-10.

CARTRIDGE, ball, caliber .22, long rifleb. Use of caliber .22 short cartridge or other than caliber .22 long

rifle cartridge (fig. 109) is prohibited in these rifles. Such cartridgeswill be inaccurate and damage the rifle by causing erosion which willcause the rifle to function unsatisfactorily with its standard cartridge.Figure 110 shows results brought about by use of a shorter cartridgethan that for which the rifle was designed. Commercial manufac-turers have brought out cartridges of the long rifle type known asHi-Speed, Hi-Victory, Super Speed, etc., which give high muzzle

128

TM 9-28072-73


velocities and create high pressures. These high velocity cartridgesare not issued by the Ordnance Department nor is their use recom-mended.

73. DATA.a. Although there are slight differences in cartridges of different

manufacture (shape of bullet, powder, etc.), the following data areconsidered substantially correct.

b. General.Muzzle velocity (approx.) ....................... 1,100 ft per secMaximum range at approximately 30-degree elevation ..... 1,500 ydPressure in chamber (approx.) ................ 16,000 lb per sq in.Weight of ball cartridge (approx.) .................... 53.5 grainsWeight of bullet (approx.) ..... ............... 40.0 grainsWeight of powder charge (approx.) ................... 1.7 grains

c. Table of Fire.Ordinate

of Tra- MeanVeloc- Bullet jectory Ac- Angle

ity Energy Time of Drop at Half curacy of De-Range (ft- (ft- Flight Target Range Radius parture

(yd) sec) lb) (sec) (in.) (in.) (in.) (min)

0. . 1,100 102 . . ..... ... .. . ..25... 1,070 95 0.068 0.89 0.24 0.14 3.550... 1,020 '89 0.140 3.17 0.98 0.33 7.675... 980 84 0.214 8.06 2.28 0.45 11.7

100 .. 950 79 0.292 14.82 4.08 0.57 15.8125... 920 75 0,372 24.73 6.78 '0.80 20.5150... 890 71 0.455 36.64 10.02 0.98 24.9175 ... 860 67 0.541 50.80 14.20 1.13 29.6200 .. 840 64 0.630 72.93 19.10 1.25 34.3225... 810 61 0.720 93.04 28.30 1.45 39.7250 . . 790 58 0.812 118;21 31.87 1.65 44.7275 .. 770 '55 0.911 147.20 39.87 1.88 50.8300... 750 52 1.005 177.12 48.69 2.12 55.7

d. Angles of Departure.

Angle of Angle ofRange (yd) Departure Range (yd) Departure

Degrees Minutes Degrees Minutes

100 .. . . 16 900 ..... 6 13200 .. ... 34 1,000 ..... 7 44300 ....... 56 1,100 ... 9 32400 ....... 1 29 1,200 ..... 11 41500 ....... 2 10 1,300 ..... 14 16600 ....... 2 56 1,400 ..... 19 00700 ....... 3 51 1,450 ..... 25 00800 ....... 4 56

129

TM 9-28073-75

CALIBER' .22 RIFLES, ALL TYPES

e. Accuracy (as Determined by Firings to Date).Diameter of

Range (yd) Group Circle(in.)

25 ......................... 0.550 ........................ 1.0

100 ......................... 3.0200 .......................... 8.0

f. Elevation and Windage Changes. The rear sight elevatingscrew knob of the U.S. rifles has 10 graduations. A click or halfminute of angle corresponds to one graduation; a change of one gradu-ation on this knob changes the point of impact vertically 0.5 inch at100 yards. A click of the rear sight windage screw knob will changepoint of impact 0.5 inch horizontally at 100 yards. Changes in pointof impact corresponding to one click of the rear sight windage screwknob or one click of the rear sight elevating screw knob at rangesfrom 50 to 200 yards are shown in the table below.

Change atRange Point of

Impact(in.)

50 feet .................... 0.0825 yards ............... ..... 0.12550 yards ..................... 0.25

100 yards .................... 0.50200 yards ........... . 1.00

g. Penetration. · When fired into i-inch pine boards spaced 1 inchapart at a range of 15 feet, the bullet will penetrate the first fiveboards and one-eighth inch into the sixth board.

74. PACKING.a. The cartridges are packed 50 in a cardboard box and 10 of

these boxes,(500 cartridges) are packed in a paper carton. The out-side wooden packing cases contain either 5,000 or 10,000 cartridges,10 or 20 cartons, respectively. Boxes of this ammunition procuredfor oversea shipment have an airtight metal liner.

b. A case of 10,000 cartridges without metal liner weighs 85pounds. Additional data are published in SNL T-1.

75. FIELD REPORT OF ACCIDENTS.a. When an accident involving the use of ammunition occurs during

training practice, the procedure prescribed in AR 750-10 will beobserved by the ordnance officer under whose supervision the am-munition is maintained or issued. Where practicable, reports coveringmalfunctions of ammunition in combat will be made to the Chief ofOrdnance, giving the type of malfunction, type of ammunition, thelot number of the complete rounds or separate-loading components,and conditions under which fired.

130

TM 9-28076-77

CHAPTER 9

ORGANIZATIONAL SPARE PARTS AND ACCESSORIES

76. ORGANIZATIONAL SPARE PARTS.a. A set of spare parts is supplied to the using arms for field re-

placement of those parts most likely to become broken, worn, orotherwise unserviceable. The set should be kept complete at alltimes by requisitioning new parts for those used. After it has beenreceived, try each part as soon as practicable, to see that it fits themateriel properly. Replace any parts which do not function properly.For listing of organizational spare parts for the U.S. Rifles, Cal. .22,M1922, M1, and M2, see SNL B-17.

b. Organizational spare parts will not be furnished for the caliber.22 rifles (commercial). When these rifles become unserviceable,they should be shipped to an arsenal for repair.

c. Spare parts should be kept clean and well oiled for preservationat all times. Sets of parts should be checked occasionally for com-pleteness, and when a spare part is used, another should be requi-sitioned to complete the set.

77. ACCESSORIES.a. Accessories include the tools and equipment required for such

disassembly and assembly as the using arms are authorized to per-form, and for cleaning and preserving the rifles. Accessories shouldnot be used for purposes other than those prescribed, and when notin use should be properly stored.

b. There are a number of accessories, the names or general char-acteristics of which indicate their use. Others, embodying specialfeatures or having special uses, are described in the followingparagraphs:

(1) CLEANING BRUSH, CAL. .22, M3. This is a bronze bristlebrush (fig. 111) 11/2 inches in over-all length. It consists of the coreand bristles. The core made of brass wire is twisted in a spiral andholds the bristles in place.

(2) CLEANING ROD, CAL. .22, M1. The rod (fig. 112) consists ofa rod, handle, washer, collar, and pin. The cleaning rod is constructedof steel, and is of sufficient length so that the bore of the rifle can becleaned from the breech end. The handle swivels on the rod be-tween the washer and collar.

.(3) FRONT SIGHT COVER. This cover (fig. 113) is made of sheetsteel and pressed into shape. It is then case-hardened, giving itsufficient spring to cause it to hug closely the ·barrel and front sightstud, thereby retaining its position on the barrel. This cover is foruse with the U.S. rifles only.

131

TM 9-28077


IINCHES

RA PD 85531

Figure 11 - Cleaning Brush, Cal. .22, M3, C64179

IINCHESI I I 1 RA PD 85532

Figure 112 - Cleaning Rod, Cal. .22, MI, C3837

NCHESA PD 85536RA PD 85536

Figure 1 13 - Front Sight Cover, C64 157

BUCKLE BODYLOOP

. )"HOOK KEEPER ASCLIP RA RD 85535

Figure 14 - Gun Sling MI, D44058

(4) GUN SLING MI. The gun sling (fig. 114) is comprised ofthree assemblies; the sling assembly, consisting of a cotton webbingbody to which is fastened a clip and buckle; a keeper assembly, com-posed of a keeper body and clamp; and a hook assembly, which con-sists of a hook and loop. To attach the gun sling to the rifle, passthe clip end of the sling assembly through the lower band (or forward)swivel and fasten securely with the keeper assembly. Clip the hookassembly to the butt swivel. The gun sling fastened to the rifle loopsin this manner is then adjusted to suit the particular soldier using it.If -dditional adjustment is seeded, remove the forward swivel (com-mercial rifles) and insert into the proper adjustment hole.

132

TM 9-28077

ORGANIZATIONAL SPARE PARTS AND ACCESSORIES

STRAP (LONG) STRAP (SHORT)

METAL HOOK

1C NHTI 14 151 RA PD 85534

Figure 115 - Gun Sling M 907 (Leather), 20-18-25

INCHES IRA PD 85537

Figure 116 - Rifle Screwdriver, C64038

(5) GUN SLING M1907 (LEATHER). This sling (fig. 115) con-sists of a long leather strap and a short leather strap joined togetherby a metal loop. On one end of each of these straps is a metal hookfastened to the strap with rivets. In order to obtain the proper ad-justment of the gun sling, the hooks are inserted into holes whichare provided in the long and short straps for this purpose. The slidingloops which are made of leather serve to keep the leather' strap loopin position on the rifleman's arm after proper adjustment has beenmade to the gun sling.

'(6) RIFLE SCREWDRIVER. This screwdriver (fig. 116) consists oftwo blades and a punch pin fastened together by a rivet, making acombination tool used in disassembling and assembling the rifle.

133

TM 9-28078


CHAPTER 10

STORAGE AND SHIPMENT

78. PREPARATION FOR RAIL SHIPMENT.a. List of Material Required for Preparation of Target Rifles

for Shipment and Storage.CLOTH, abrasive, aluminum-oxide SOAP, castileCLOTH, crocus SOLVENT, dry-cleaningOIL, lubricating, preservative,

mediumb. Cleaning.(1) Disassembly of the rifles shall be made in accordance with

procedure outlined in chapter 6.(2) Clean all metal parts, including metal parts of stock, trigger

mechanism, bolt group, rear sight group, magazine group, safety parts,and front sight group thoroughly with dry-cleaning solvent or with asoap solution as follows:

(a) Apply dry-cleaning solvent by scrubbing with a brush orwiping with a clean, saturated cloth.

(b) Apply soap solution consisting of 1 pound of castile soap to4 gallons of water, by vigorously brushing or scrubbing the surfacesthoroughly until all traces of contamination have been removed. Thesurfaces shall then be rinsed with clean, hot water and driedthoroughly.

(3) Avoid contact of bare hands with the cleaned surfaces.(4) REMOVING RUST SPOTS. If rust has formed on surfaces of

the materiel, rust should be removed in accordance with the fol-lowing:

(a) Use aluminum-oxide abrasive cloth for cleaning finished andunfinished external surfaces where wear of the parts cleaned will notaffect the functioning of the mechanism.

(b) Use crocus cloth for removing rust or stain and polishing partsof the firing mechanism and other finished surfaces of metal.

c. Preservation of Materiel. CAUTION: Application of preser-vative shall be performed immediately after cleaning.

(1) Completely cover all metal parts of rifles with medium pre-servative lubricating oil.

(2) Special care must be taken when assembling parts so as notto rub off any of the preservative applied.

(3) If tank is available, dipping of assembled rifles shall be doneat a 45-degree angle with bolt retracted to prevent an air void.

(4) Allow excess oil to drain from rifles, close bolt, and releasehammer by pulling trigger before wrapping and boxing.

134

TM 9-28078-80

STORAGE AND SHIPMENT

d. Shipping Containers.(1) CHEST SPECIFICATIONS (10 RIFLES PER ARMS CHEST).

L W H Wt.

U.S. Rifle, Cal. .22, M1922MI andM2 ....................... 4.83 1.21 1.25 165 'b gross

U.S. Rifle, Cal. .22, Remington,Model 513T ............... 4.15 1.33 1.04 135 lb gross

U.S. Rifle, Cal. .22, Stevens, Model416-2 ..................... 4.15 1.33 1.04 142 lb gross

U.S. Rifle, Cal. .22, Winchester,Model 75 .................. 4.15 1.33 1.04 130 lb grossNOTE: Refer to SB 9-OSSC B for additional data on shipping and

storage.

79. REMOVAL OF PRESERVATIVE MATERIAL.a. The procedure for the preparation of materiel upon arrival at

destination, if materiel is to be placed in service or upon removalfrom storage, is accomplished as prescribed in paragraph 78 h.

b. Lubricate rifles thoroughly in accordance with lubrication in-structions, paragraph 78.

80. LIMITED STORAGE INSTRUCTIONS.a. Limited Storage (Periods Less Than 30 Days). Materiel in

limited storage is that materiel which is temporarily out of servicefor less than 30 days, or materiel that must be ready for operationon call.

(1) PREPARATION. Before being stored, materiel will be thoroughlycleaned and completely rust-proofed as prescribed in paragraph 78 band c.

(2) INSPECTIONS. Periodical inspections should be made of themateriel while in storage. This inspection should note, among otherthings, condition of the rust-preventives, the missing parts, and theneed for repairs. If found to be corroding at any part, the materielshould be completely rust-proofed and preserved as prescribed inparagraph 78 b and c.

135

TM 9-28081


CHAPTER 1 1

OPERATION UNDER UNUSUAL CONDITIONS

81. HOT CLIMATES.

a. Hot, Humid Climates.(1) In tropical climates where temperature and humidity are

high, or where salt air is present, and during rainy seasons, the rifleshould be thoroughly inspected daily and kept lightly oiled when notin use. The groups should be dismounted at regular intervals and,if necessary, disassembled sufficiently to permit drying and oilingthe parts.

(2) Care should be exercised to see that unexposed parts andsurfaces are kept clean and oiled.

(3) OIL, lubricating, preservative, medium, sh'uld be used forlubrication.

(4) Wood parts should be inspected to see that swelling due tomoisture does not bind working parts; if necessary, shave off the woodbut only enough to relieve binding. A light coat of OIL, linseed,raw,'applied monthly, and well rubbed in with the heel of the hand,will help to keep moisture out: Allow the oil to soak in for a fewhours'and then wipe and polish the wood with a dry, clean rag.(Linseed oil should not be used on varnished stocks.)

CAUTION: Care should be taken that linseed oil does not get intothe mechanism or on metal parts as it will become gummy when dry.Stock should be dismounted when this oil is applied.

b. Hot, Dry Climates.(1) In hot, dry climates, where sand and dust are apt to get into

the mechanism and bore, the rifle should be wiped clean daily, oroftener, if necessary. Groups should be dismounted and disassembledas far as necessary to facilitate thorough cleaning.

(2) In such climates, wood parts are likely to dry out and shrink.A light application of raw linseed oil applied as in subparagraph a(4), above, will help to keep the wood in condition.

(3) Oiling and lubrication should be kept to a minimum, as oilwill collect dust which will act as an abrasive on the working partsand foul the bore and chamber. OIL, lubricating, preservative, special,is best for lubrication where temperatures are high, and should belightly applied only to the surfaces of working parts showing signs ofwear.

(4) Perspiration from the hands is usually acid and causes rust.Metal parts should, therefore, frequently be wiped dry.

(5) During sand or dust storms the rifle should be kept covered ifpossible.

136

TM 9-28082

OPERATION UNDER UNUSUAL CONDITIONS

82. COLD CLIMATES.a. In temperatures below freezing, and particularly in Arctic

climates, it is necessary that the moving parts of the rifle be kept ab-solutely free of moisture. It has also been found that excess oil onthe working parts will solidify to such an extent in cold weather asto cause sluggish operation or complete failure of the rifle.

b. In temperatures below 0 F, the metal parts of the rifle shouldbe taken apart and completely cleaned with SOLVENT, dry-cleaning,before use. The solvent should then be thoroughly wiped off, andwhen thoroughly dry, parts should be immediately oiled with OIL,lubricating, preservative, special, and the oil then wiped off with aclean cloth. The working surfaces of parts which show signs ofwear may be lubricated by rubbing with an oiled cloth. At tem-peratures above 0 F, the rifle may be oiled lightly after cleaning bywiping with a slightly oiled cloth, using OIL, lubricating, preservative,special.

c. Immediately upon being brought indoors, the rifle should bethoroughly oiled, using OIL, lubricating, preservative, special, becausemoisture condensing on the cold metal in a warm room will causerusting. After the rifle has reached room temperature, it should bewiped free of condensed water vapor and oiled again.

d. If the rifle has been fired, it should be thoroughly cleaned andoiled. The bore may be swabbed out with an oiled patch and, whenthe rifle reaches room temperature, thoroughly cleaned withCLEANER, rifle bore, and oiled as prescribed in subparagraph b,above.

e. Before firing, the rifle should be cleaned and oil should be re-moved as prescribed in subparagraph b, above. The bore andchamber should be entirely free of oil before firing.

NOTE: If possible, condensation should be avoided by providing acold place in which to keep rifles when not in use. For example, aseparate cold room with appropriate racks may be used or, when inthe field, racks under proper cover may be set up outdoors.

I37

TM 9-28083-85


CHAPTER 12

REFERENCES

83. PUBLICATIONS INDEXES.The following publications indexes should be consulted frequently

for latest changes or revisions of references given in this chapter andfor new publications relating to materiel covered in this manual:

a. Introduction to Ordnance Catalog (explaining ASF CatSNL system) ......................... ORD 1 IOC

b. Ordnance Publications for Supply Index (index ASF Catto SNL's) ........................... ORD 2 OPSI

c. Index to Ordnance Publications (listing FM's,TM's, TC's, and TB's of interest to ordnancepersonnel, OPSR's, MWO's, BSD, S of SR's,OSSC's, and OFSB's; and includes Alphabeti-cal List of Major Items with PublicationsPertaining Thereto) ................... OFSB 1-1

d. List of Publications for Training (listing MR's,MTP's, T/BA's, T/A's, FM's, TM's, and TR'sconcerning training) ................... FM 21-6

e. List of Training Films, Film Strips, and FilmBulletins (listing TF's, FS's, and FB's byserial number and subject) .............. FM 21-7

f. Military Training Aids (listing Graphic Train-ing Aids, Models, Devices, and Displays)... FM 21-8

84. STANDARD NOMENCLATURE LISTS.a. Cleaning and Preserving.

Cleaning, preserving and lubricating materials;recoil fluids, special oils, and miscellaneousrelated items .......................... SNL K-1

b. Gun Materiel.Ammunition, rifle, carbine, and automatic gun SNL T-1Packing materials used by field service for

small-arms service ammunition ........... SNL T-5Rifles, U.S. cal..22, M1922, M1922MI, and M2 SNL B-17Rifles, cal. .22, (commercial) ............. SNL B-25

85. EXPLANATORY PUBLICATIONS.a. Gun Materiel.

Ammunition, general ..................... TM 9-1900Ordnance maintenance: Rifles, Cal. .22, All

types ............................... TM 9-1280

138

TM 9-28085

REFERENCES

Qualifications in arms and ammunition trainingallowances ........................... AR 775-10

Small arms ammunition .................. TM 9-1990Small arms ammunition .................. OFSB 3-5

b. Inspection, Maintenance, and Lubrication.Cleaning, preserving, lubricating, and welding

materials and similar items issued by theOrdnance Department ................. TM 9-850

General lubrication instructions, small arms... OFSB 6-3Serviceability standards .................. OFSB 4-17

c. Instruction guide: Small arms accidents, mal-functions, and their causes ............... TM 9-2210

d. Rifle Practice, Targets, and Ranges.Range regulations for firing ammunition for

training and target practice .............. AR 750-10Targets, target materials, and rifle range con-

struction ............................. TM 9-855e. Instruction guide: Small arms, light field

mortars and 20-mm aircraft guns.......... TM 9-2200f. Small arms, hand arms, semiautomatic rifles,

pyrotechnic projectors, scabbards, and armchests, arm lockers, and arm racks ........ SB 9-OSSC B

139

TM 9-280


INDEX

A Page Page

Accessories .............. 131 (See also Bolt with firingAccidents (ammunition), field mechanism assembly (U.S.

report of .................... 130 rifles))Ammunition Bolt handle and body group

authorized round ...........-. 128 (Stevens rifle) ............... 55care, handling, and preserva- Bolt handle groups

tion .... ,... ............ 127 Remington rifle ............. 45cautions in use of ............ 14 Stevens rifle .: .............. 55classification, identification, U.S. rifles ................ 22, 26

and nomenclature ....... 126 Bolt head groupsdata ....................... 129 Stevens rifle ................ 54firing tables ................ 126 U.S. rifles .................. 18lot number, grade, and marking 127 Bolt sleeve assembliespacking and field report of Remington rifle ............. 46

accidents ................ 130 U.S. rifles .................. 27storage .................... 128 Winchester rifle

Antiaircraft rear sight aperture, bolt cocking sleeve ......... 69installation and removal ...... 103 bolt sleeve .............. 72

Assembly (See Disassembly and Bolt with firing mechanism assem-assembly) bly (U.S. rifles)

description and functioning .... 18B ..................removal and installation ...... 99

Bore, cleaning of ............ 94,95

Barrel and receiver group Butt plate and swivel (U.S. rifles) 39description and functioning

Remington rifle ............ 50Stevens rifle .............. 63 Care and preservationU.S. rifles ................ 34 ammunition ................ 127Winchester rifle ........... 77 cautions ................... 14

inspection .................. 123 removal of preservative material 135removal and installation rifles .................. 93

Remington rifle ........... 110 Cartridge, ball, cal..22, long rifle 128Stevens rifle .............. 115 Cartridges, cautions in use of .... 14U.S. rifles ................ 108 Case, split, stretched, or ruptured 92Winchester rifle ........... 121 Cleaning

Blowback .................... 92 during and after firing ....... 95Bolt groups preparatory to firing .......... ' 94

assembly of bolt (U.S. rifles) . 102 rifles received from storage .... 96description and functioning when no firing is done ....... 94

Remington rifle ........... 44 Cleaning brush, cal..22, M3 ..... 131Stevens rifle .............. 54 Cleaning rod, cal..22, Ml ....... 131Winchester rifles .......... 69 Cocking the rifles (recocking) ... 86

disassembly of bolt (U.S. rifles) 99inspection .................. 122 Dremoval and installation Data ...................... 13

Remington rifle ........... 108 Disassembly and assemblyStevens rifle .............. 111 general discussion ........... 99Winchester rifle ........... 115 Remington rifle ............. 108

140

TM 9-280

INDEX

D-Contd. Page I pageDisassembly and assembly-Contd. Inspection

Stevens rifle ............... 111 . barrel and receiver group .... 123U.S. rifles .................. 99 bolt group ................... 122Winchester rfle ............. 115 general discussion ........... 122

magazine group ............. 123E rear sight group ............. 123

Ejector ................. stock group and slings ........ 124differences among rifle models.. 13 tools ...................... 122failure to eject ............. 92Remington rifle ............. 51to obtain positive ejection ..... 14 LU.S. rifles .......... ........ 20Winchester rifle ............. 80 'Loading rifles ................. 10

Elevation and windage changes . 130 Lot number, ammunition ....... 127Extractor Lubrication ................... 97

failure to extract .......... 92 Lyman 48C receiver sight . ..'.. 32, 87U.S. rifles ................ 20 Lyman 57E rear sight .......... 75

F MFeed, failure to ............... 92 MagazineFiring failure to feed from ......... 92

accuracy ................... 130 loading ........ ............ 84cautions ................ 14,41 retaining spring (U.S. rifles) ... 37failure to fire ............... 92 Magazine groupfiring ...................... 86 description and functioningtable of fire ............... 129 Remington rifle ........... 47(See also Cleaning) Stevens rifle ........... ... 59

Firing mechanism group U.S. rifles ................ 31Stevens rifle ............... : .55 Winchester rifle ........... 75U.S. rifles .................. 28 inspection ...... ............ 123

Firing pin group removal and installationRemington rifle .............. 46 Remington rifle .......... 108U.S. rifles ................... 28 Stevens rifle .......... 111,114Winchester rifle .............. 73 U.S. rifles ....... ......... 103

Firing tables .................. 126 Winchester rifle ........... 119Floor plate (V.S. rifles) ........ 39 Magazine housing group

Stevens rifle ................ 67G Winchester rifle ............ 80

Gun sling Ml ......... . . . . .. 132 Magazine lock (Remington rifle). 51Malfunctions and corrections.. 91,92Gun sling M1907 (leather)Marking ammunition .......... 127cleaning ..------- Metal surfaces, cleaning of .... 94description ................ .133 es

Gun slings, inspection of ........ 124,91 Models (rifle), differences among 10

HHandle group, bolt (See Bolt Nhandle group) Nomenclature

Handling ammunition .......... 127 ammunition ................ 126Hangfire ..................... 92 . parts and assemblies ......... 15

141

TM 9-280


0 Page Page

Oiling ....................... 94 functioning ..... ............ 68

Operation magazine and rear sight assem-

cold climates ...... .......... 137 blies . . 59

firing and recocking .......... 86 rear sight setting

hot climates ..... ........... 136 rear sights ..... ......... 86, 88

loading the rifle or magazine ... 84 zeroing the sights .......... 90

rear sight setting ............ 86 setting the safety ............ 86

setting the safety ............ 84 stock group ........ ......... 67

Rifle, Winchester model 75

assembly and disassembly .... 115

P barrel and receiver group .... 77

Packing ammunition ............ 130 breech bolt assembly ......... 69

Penetration of bullet ........... 130 characteristics and data ...... 13comparison of commercial rifles 12

functioning .82tR magazine and rear sight assem-

Rail shipment ..... 134 blies........... 75

Receiver rear sight setting

Remington. rifle ........... 51 rear sights .............. 86,88

Stevens rifle ....................... 63 zeroing the sights ........ 90

U.S. rifles .... ........... 36 setting the safety .......... 86

Winchester rifle .................. 79 stock group 80

(See also Barrel and receiver Rifle M1922, U.S., differences

group) among models ... ............. 10

Receiver group (and barrel) (See Rifles Ml and M2, U.S.

Barrel and receiver group) assembly and disassembly .... 99

Redfield 75 RT sight ........ 47, 87 barrel and receiver group .... 34

Repair, explanation of .......... 91 bolt with firing mechanism

Rifle, Remington model 513 T assembly............... 18

assembly and disassembly .... 108 characteristics and data ...... 13

barrel and receiver group .... 50 differences among models ..... 11

bolt group .......................... 44 magazine assembly .. ........ 31

characteristics and data ...... 13 operation and functioning ... 18, 40

comparison of commercial rifles 12 rear sight group ............ 32

differences from U.S. rifles .... 41 rear sight setting

functioning ................. 53 rear sights ...... . 86, 87

magazine and rear sight assem- zeroing the sights ...... 89

bly .................... 47 setting the safety 84rear sight setting stock group ...... 39

rear sights .............. 86,87 Rifles (cal..22)

zeroing the sights .......... 89 characteristics and differences

setting the safety ............ 86 among models ......... 10, 13

stock 'group ................. 53 cleaning

Rifle, Stevens model 416-2 after and during firing ..... 95

assembly and disassembly ..... 111 rifles received from storage. 96

barrel and receiver group .... 63 when no firing is done ...... 93

bolt assembly ................ 54 description . .15

characteristics and data .... 13 disassembly (general discussion) 15

comparison of commercial rifles 12 firing and recocking ........ 86'

differences from U.S. rifle .... 54 loading . .84

142

TM 9-280

INDEX

R-Contd. Page PageRifles (commercial), differences Spring (U.S. rifles), magazine re-

among models ........... 12 taining ...................... 37Rust preventive ............... 94 Stock group

cleaning ................... 93S inspection .................. 124

Safety group Remington rifle ............. 53Stevens rifle ...... :......... 67 Stevens rifle ................ 67Winchester rifle .......... 8 U.S. rifles .................. 39

Safety lock Winchester rifle ............. 80description and functioning ... 28 Stoppage, cautions in case of ... 14Remington rifle ............. 51 Storage and shipmentsetting the safety ............ 84 ammunition storage ......... 128

Screwdriver, rifle ............ 133 cleaning rifles received fromShipment (See Storage and ship- storage ................ 96

ment) limited storage .............. 135Sight assembly, rear rail shipment ............... 134

description and functioning removal of preservative material 135Remington rifle ........... 47Stevens rifle .............. 59 TU.S. rifles ................ 32 Tools, for inspection ............ 122Winchester rifle ........... 75 Trigger

inspection .................. 123removal and installation functioning

Remington rifle ....... 108,110 Remington rifle 54Stevens rifle .............. 114 Stevens rifle 69U.S. rifles ................ 103 U.S. rifles.41Winchester rifle ............ 119 Trigger mechanism group

Sight cover, front .............. 131 Remington rifle.51Sights .......................... Stevens rifle ............... 65

characteristics of rear sight.. 10 U.S. rifles .................. 36differences among rifle models. . 13 Winchester rifle ............. 79front sightfront sight rifle . 5 Trigger pull, differences among

rifle models ............. :.... 13U.S. rifles ......... ....... 36

rear sightsetting ................... 86 WU.S. rifles ................ 32 Windage and elevation changes.. 130

zeroing ......... .. 8........ 88 Wood parts, cleaning ........... 93Sleeve group, bolt (See Boltsleeve assembly)

Sling, gun (See Gun sling)Spare parts ........... :... 15, 131 Zeroing the rear sights ......... 88

143PUBLICATIONS DEPARTMENT -RARITAN ARSENAL

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